It had been a few days after the conversation between Martha and Kayla. The brunette was careful around her, thinking through her words so many times that she felt like she was scripting everything. But so far, Martha hadn't forgiven her, not that Kayla had expected her. She, in her opinion, hadn't done anything to earn that forgiveness. The most she had done so far was suggesting to the Doctor that he should give Martha a chip for her phone so that she could call people even when traveling with them.

The Doctor, who was clearly uncomfortable with how Kayla and Martha were treating each other, jumped onto the suggestion and started to ramble to Martha about all the great things phone had been, were, and would be used for. Martha was nodding along and clearly not following at all. "Okay, remember, guys. This is a prison bubble designed by Bill. We've got to prepare ourselves for what we find in here," the Time Lord finished. Casually, he threw the phone to Martha and she caught it and looked it over.

"No way! But it's...too mad! You're telling me I can call anyone, anywhere in Space and Time on my mobile?!" Martha questioned, her eyes wide as she looked up.

Seeing that the Doctor was busy pushing buttons on the console, Kayla took the opportunity to respond. "As long as you know the area code, you should be good." Martha looked over at her, seeming to be stunned to hear her speaking. Kayla just shrugged. "Go on, try it," she pressed with what she hoped was a nice, friendly smile.

Martha frowned slightly and turned away to dial her number when, without any warning from the TARDIS, the space ship shook violently. The Time Lord quickly wrapped his arms around Kayla while grabbing onto one of the coral-like branches in the console room. Martha was not so lucky and let out a little shriek as she fell to the ground.

Making sure that Kayla was holding on tightly, the Doctor made his way to the console and started to run around like a completely madmen. "Distress signal! Locking on!" the Doctor shouted, which was very good for Kayla because one look at his mind made her feel a huge headache growing at how quickly it was going. Somehow, he was able to function with all those thoughts in his head, and Kayla figured that she would never be able to understand how this was possible.

Unaware of the brunette thoughts, the Doctor used his foot to activate a switch on the console. "Might be a bit of…" he started to warn only to cut himself off as another shake sent him and Martha flying and Kayla to nearly join them on the ground. But thankfully, this also seemed to be the end to the shaking and the Doctor jumped to his feet in the sudden stillness. "Turbulence," he finished with a grin. "Sorry!"

Already wanting to go out of the TARDIS, the Doctor grabbed Kayla's hand and started to tug on it until she allowed him to pull her after hi with a sigh. The two started towards the door of the TARDIS and, over his shoulder, the Doctor called casually, "Come on Martha! Let's take a look!"

Hearing the black woman get to her feet with a huff, the Doctor grinned and pushed open the door. He and Kayla stepped out and, after few moments, Martha followed him as well. The trio looked around at where they had landed.

The TARDIS was sitting in some sort of engine room…a very hot engine room. The air itself seemed to be glowing red with the extreme heat. The Doctor shook his head. "Whoa! Now that is hot!" he exclaimed, though he didn't sound nearly as displeased as Kayla felt he should.

Martha nodded. "Whoa! It's like a sauna in here!" the black woman agreed. She took off her jacket and wrapped it around her waist with a small shrug.

Kayla, seeing that that was a good idea, rolled up the sleeves of the dress she was wearing as much as she could. At least her dress was made out of a light material. If it was any heavier she surely would pass out. It was seriously that hot!

Her musings were cut short by the Doctor's hand leaving hers. She looked up to see the Time Lord wandering over to the equipment and examining it critically. "Venting systems. Working at full pelt. Trying to cool down…" he noted with a slight frown. Straightening up, he turned towards a heavy –duty door that was closed. "Well! If you can't stand the heat…"

Moving back to Kayla, the Doctor took her hand and the two headed to the door with Martha in tow. The door opened automatically, which saved them from touching the metal. "That's much better," Kayla remarked.

The trio started to walk forwards a bit only to be practically run into by two men and woman. Eyes widening, the Doctor grabbed Kayla protectively while looking behind them to see another woman running towards them from the opposite direction. The entire group looked very hot.

"Oi! You two!" One of the men cried out.

"Get out of there!" The woman was coming from the opposite direction ordered.

The man who had cried out pointed at the door the trio was lingering near. "Seal that door! Now!"

Stunned, confused, and protective, the Doctor moved Kayla behind him. Martha, just as confused, stepped closer to them. Seeing their chance, the two men sealed the door and the woman who had been behind them stepped in front of them and crossed her arms with a frown. "Who are you? What are you doing on my ship?" she asked accusingly.

"Are you police?" One of the men asked, causing Kayla to narrow her eyes. Usually when someone asked if someone was police then that meant they were hiding something.

Kayla frowned. "Why would we be police?" she asked carefully.

Martha shrugged. "We got your distress signal."

The Doctor was thinking of something else entirely. "If this is a ship," he started slowly, "why can't I hear any engines?"

The apparent captain sighed. "It went dead four minutes ago."

"So maybe we should stop chatting and get to engineering. Captain," a man said, causing the captain to send him a glare.

"Secure closure active."

At the computer's voice and the loud clang from behind her, the captain shouted, "What?!"

"The ship's gone mad," the man grunted.

Suddenly, another woman ran towards them, a frown on her face as doors slammed shut behind her until they were all locked in the one area. "Who activated secure closure? I nearly got locked in to area 27," she asked the others. As if to mark her words, the sound of the doors closing came to them. The woman shook her head and then paused, her eyes widening as she took in the trio of time travelers. "Who are you?"

Blinking at the question, the Doctor made to do the usual introductions but Martha, sounding distant and worried, cut him off. "He's the Doctor, she's Kayla, and I'm Martha. Hello." No one seemed to notice her walking forwards towards one of the windows.

"Impact projection: 42 minutes." The computer voice warned.

"We'll get out of this. I promise," the captain said with a frown.

The Doctor, his eyes narrowing at the word 'impact,' pulled Kayla closer to him. "Forty-two minutes 'til what?" he asked in a sharp voice, not noticing Martha softly calling his name.

Suddenly, the black woman screamed almost hysterically, "Doctor! Kayla! Look."

The two ran over and joined Martha at the window. For a few moments, they didn't know what they were looking at. And then, the Doctor grabbed Kayla's hand tightly and she whimpered through their mental link, 'That can't be…'

The captain stepped up behind them with a grim look on her face. "Forty – two minutes until we crash into the sun," she informed them, though she didn't need to. The trio of time travelers could clearly see that they were hurdling towards a giant sun at a speed no one could take comfort in.

Turing away from the window, the Doctor zeroed in on the captain. "How many crew members on board?" he asked in a quick, panicky voice. After all, his bonded was in danger of crashing into a sun!

The woman blinked. "Seven, including us."

"We transport cargo across the galaxy. Everything's automated. We just keep the ship…"

The Doctor rolled his eyes and ignored the person. Instead, he cut him off as he started running back to the door they had come through. "Call the others, I'll get you out!"

As the Time Lord made to open the door, Kayla had a sinking feeling that that would be a huge mistake. This was confirmed when the crew members all rushed towards him to stop him.

"What's he doing?!" one asked in blatant horror.

"No! Don't!" the captain cried out.

'Doctor, wait!' Kayla added in mentally. Sure, she had no idea why they were freaking out, but if they didn't want him to open that door then he probably shouldn't.

They were all too late, however. The Doctor opened the door. The area where they had parked the TARDIS had become so hot in the time they had been in the other room that the pure force of the heat knocked him backwards and off his feet. Kayla hurried over to the Doctor and started to check him over with Martha joining her in seconds. Thankfully, he was alright. And, also thankfully, the door to the area was closed, leaving the others to crowd around the Time Lord.

"But our ship's in there!" he protested while Kayla took his hand and rubbed it as soothingly as possible.

"In the vent chamber?" a crew member asked with a raised eyebrow.

Kayla sighed and shook her head. "It's our lifeboat," she tried to explain to the members of the crew.

One of them shrugged. "It's lava," she replied bluntly.

"The temperature's going mad in there! Up 3000 degrees in ten seconds, and still rising," one woman warned in a worried tone.

"Channeling the air. The closer we get to the sun, the hotter that room's gonna get." Kayla had to nod at that logic, even if she didn't like it.

Martha huffed and crossed her arms. "We're stuck here," she stated.

The Doctor looked over at Kayla and saw the slight frown on her face. A small brush of her mind told him exactly what he was guessing, she was upset. She had wanted this trip with Martha to be perfect and now they had basically been told that they were probably going to die in 42 minutes.

The Doctor knew what he had to do.

He clambered to his feet and grabbed Kayla's hand with an easy smile on his feet. "So? We fix the engines, we steer the ship away from the Sun! Simple! Engineering down here, is it?!" Not waiting for an answer from the others, he knew that he was right, he pulled Kayla with him down the corridors. Behind them, Martha and the crew exchanged looks before they followed at couple.

"Impact in 40.26."

The Doctor, still pulling Kayla, ran down the stairs to the engineering room with the crew following. However, when they reached the engineering room downstairs, the Doctor stopped and turned to face the crew. "Blimey! Do you always leave things in such a mess?" he asked with an arched eyebrow.

Judging by the crews' reaction, that was a no. The captain fell against the wall and stared at the mess of wirings, springs, casings that were steaming and littered all over the floor. "Oh my god!"

"What the hell happened?!" one of the men yelled.

The crew started to walk around the room, surveying the damage. Kayla eyed it critically and then looked over at the Doctor. 'This is done well.'

'Very well,' the Doctor agreed with a frown. 'Too well.'

'Someone did this on purpose,' At this, the Doctor moved over to Kayla and took her hand and squeezed it tightly. The idea that someone was sabotaging the ship that was about to crash into a sun did not make the Time Lord happy. Feeling his protectiveness, Kayla ran her hand over her stomach.

"Oh, it's wrecked," one of the female crew members sighed.

The Doctor nodded and squeezed Kayla's hand before she spoke. "Pretty efficiently too. Someone knew what they were doing." Taking Kayla with him, the Doctor wandered over to a computer terminal that was attached to the wreckage.

"Where's Korwin? Has anyone heard from him or Ashton?" the captain asked sharply, her eyes narrowing as she looked over all the crew that was present.

One of the crew members shook his head. "No."

Martha seemed to be the only one in the room who had picked up on what the Doctor had said. "You mean someone did this on purpose?" she asked.

No one answered as the captain ran over to the intercom system and spoke urgently into it. "Korwin? Ashton? Where are you?" there was no response. "Korwin, can you answer?!" she asked, and then there was no response. Shaking her head, she turned to the others. "Where the hell is he? He should be up here!"

While the crew was rushing about to try and find the missing others and repair the ship, Kayla moved over to the Doctor and looked over his shoulder to see that he was using the computer to scan to see where they were. Recognizing the star system, Kayla raised an eyebrow. "The Torajji system?"

The Doctor nodded. "Yep," he confirmed with a pop of the 'p' at the end. "You're a long way from home, Martha. Half a universe away."

The Time Lord turned away from the terminal along with Kayla to face Martha, who crossed her arms. "Yeah. Feels it."

Kayla bit her lip and then turned to the crew with the frown. "Why are you still using energy scoops for fusion?" she questioned. She had noticed the readings on the computer and she knew that that sort of fusion was illegal in the Torajji system. "Hasn't that been outlawed?"

The crew exchanged guilty looks, which gave Kayla all she needed to know. The captain finally responded with what was trying to be a dismissive tone, though she didn't quite pull it off. "We're due to upgrade next docking," she said. Turning away from the glaring Time Lady, she faced her crew. "Scannell, engine report."

Nodding, the man that was apparently Scannell walked over to computer terminal the Doctor and Kayla had just left. Setting up a scan, the crew gathered around him with anxious expressions on their face. Finally, the machine beeped several times and Scannell frowned. "No response," he reported before he ran over to the wrecked engine.

"What?!" the captain cried out.

Scannell picked up a piece of the wiring and examined it. "They're burnt out. The controls are wrecked. I can't get them back online," he explained with a shake of his head.

Kayla frowned over at the Doctor, who took off the glasses that she hadn't even notice he had on. "Oh come on! Auxiliary engines! Every craft's got auxiliaries!"

"Where are they?" the brunette asked.

The captain raised an eyebrow at the couple and then shrugged. "We don't have access from here. The auxiliary controls are in the front of the ship," she explained.

"Yeah, with 29 password sealed doors between us and them. You'll never get there in time," Scannell put in with a shake of his head.

Martha frowned. "Can't you override the doors?"

"No. Sealed closure means what it says. They're all dead-lock sealed," Scannell answered.

Kayla sighed. "There goes a sonic screwdriver."

Scannell nodded. "Nothing's any use. We've got no engines, no time, and no chance."

Seeing that the crew was agreeing with him, the Doctor frowned at them all. "Oh listen to you! Defeated before you've even started! Where's your Dunkirk spirit?!" he turned to the captain. "Who's got the door passwords?"

Before she could answer, a young man did. "They're randomly generated. Reckon I know most of 'em," he paused and then gave them a smile. "Sorry. Riley Vashti."

The Doctor nodded. "Then what're you waiting for Riley Vashti, get on it," he ordered, effectively taking command.

Riley frowned. "Well, it's a two-person job." Going over to the corner, he brought a huge magnetic clamp and backpack over to the Doctor. "One, it takes to answer the questions, and the other to carry this." Leaning down, he put the equipment into the bag and zipped it up. "The oldest and cheapest security system around, eh captain?"

"Reliable and simple, just like you, eh Riley?" the captain joked back with a strained smile.

Riley rolled his eyes. "Try and be helpful, get abuse. Nice!"

Grinning slightly, Martha took the bag from Riley and shouldered it. "I'll help you. Make myself useful," she said with a shrug.

Riley nodded. "It's remotely controlled by computer panel. That's why it needs two," he explained. Giving the black woman a smile, he started to head off and Martha followed him.

"Martha!" Kayla called out suddenly, causing the companion to pause and then turn. "Be careful."

Martha's brow furrowed but she nodded. "Same to you." Not noticing the huge grin that appeared on the brunette's face, the black woman jogged after Riley.

Just as the two had left, a male's voice came over the intercom. "McDonnell? It's Ashton."

McDonnell, the captain, ran over to the intercom panel and spoke into it urgently. "Where are you? Is Korwin with you?"

"Get up to the med-center NOW!" Ashton yelled.

Her face draining of color, McDonnell sprinted out of the room. The Doctor and Kayla quickly followed. The trio passed Martha and Riley, who were getting prepared to tackle the first door, but paid them no mind as they focused on getting to the med-center.

"Impact in 34.31."

When they reached the med-center, Kayla and the Doctor took in the scene. There was man, who was likely Korwin, that was thrashing on a bed that was connected to what appeared to be an MRI scanner. Two people, a man that was most likely Ashton and an unknown female, were trying to restrain the struggling man. "Argh! Stop it!" Korwin cried out, pain evident in his voice.

"Korwin! It's Abi! Open your eyes, I need to take a look at you!" The woman, Abi, ordered.

Shaking herself out of whatever trance she had fallen into at the sight, McDonnell hurried over to the two. "Korwin! What's happened?! Is he OK?!"

The Doctor hurried over to the foot of the bed along with Kayla. "Oh God! Help me! It's burning me!" Korwin screamed.

The Doctor pulled Kayla back some, a frown on his face. "How long's he been like this?!" he asked.

"Ashton just brought him in," Abi answered.

Getting his sonic screwdriver out, the Doctor started to scan the man. Seeing this, McDonnell glared at him. "What are you doing?!" She asked just as Korwin cried out in pain.

"It's a Sonic impulse," Kayla replied in an even voice.

McDonnell shook her head and pushed past Ashton so she could be at the head of the bed. "Don't be so stupid, that's my husband!"

"And he's just sabotaged our ship!" Ashton yelled.

The captain turned towards him, a horrified expression on her face. "What?!"

Ashton nodded. "He went mad. He set the ship to secure closure, then he set the heat pulse to melt the controls."

"No way! He wouldn't do that!" McDonnell protested with a firm shake of her head.

"I saw it happen, Captain," Ashton said with a sigh.

Having finished scanning the man, the Doctor leaned forwards some to talk to Korwin. "Korwin? Korwin, open your eyes for me a second."

"I can't!" The man protested.

The Doctor frowned. "Yeah, course you can. Go on."

Hearing Korwin's protest to not look at the Doctor, Kayla turned away and picked up a sedative gun. "Sedative?" she checked with Abi even though she knew that she was right.

"Yes," Abi answered with nod.

Turning away from her, Kayla gave the Doctor the gun and he shot the sedative into Korwin's neck. The man gave one final shout and then fell still and silent. Giving Kayla a grin, he handed her the gun and she replaced it on the tray.

Now that Korwin was no longer thrashing about, the Doctor sat down on the edge of the bed and Kayla followed in suit next to him. "Rising body temperature, unusual energy readings…"

Kayla picked up from where he left off to point at the machine. "Stasis chamber should be able to help. Keep him sedated in there. Regulate the body temperature."

Abi peered at the couple questioningly but started to do what they said all the same. Ashton, who was very out of breath from trying to restrain Korwin, also looked at them oddly. The Doctor choose to ignore these looks and instead put in, "And, just for fun, run a bio-scan and tissue profile on a metabolic detail."

Abi looked over at him. "Just doing them now."

The Doctor grinned. "Oh, you're good," he praised.

Kayla nodded. "Very good," she agreed. "Do you know if anyone else are presenting these symptoms?"

"Not so far."

The Doctor breathed a sigh of relief. "Well, that's something."

McDonnell, who had been standing by her husband throughout the entire conversation, finally looked up at everyone else. "Will someone tell me what is the matter with him?!" she snapped.

The Doctor got to his feet and then helped Kayla up. "Some sort of infection. We'll know more after the test results. Now, Allons-y, back downstairs. Ay! See about those engines. Go." Ashton started to head out but McDonnell stayed. "Ay! Go." With a sigh, the woman left as well.

Kayla turned to Abi. "Call if there's any news," she instructed. The woman frowned but nodded. "Any questions?" she asked, ignoring the Doctor tugging on her hand to get her to head out with him.

Abi shook her head with a scoff. "Yeah. Who are you two?"

The Doctor laughed. "I'm the Doctor and she's Kayla." Not letting the brunette say anything else, the Doctor pulled her along with him, which made her sigh and follow.

"Heat shields failing. At twenty-five percent. Impact in 32.50."

Having made it back down to the engine room, the Doctor quickly spoke into the intercom to Abi. "Abi, how's Korwin doing? Any results from the bio-scan?"

There was a pause and then Abi's voice, tense with confusion, responded. "He's under heavy sedation. I'm just trying to make sense of this data. Give me a couple of minutes and I'll let you know."

Going back to look at the wirings, the Doctor glanced over to see what Kayla was doing. She was watching the three of them work, not taking a risk of getting hurt. When she felt the Doctor's gaze on her, she looked up. Briefly, the Time Lord allowed his eyes to flick over to the intercom.

'I can't…she hates me,' Kayla whispered through the mental link, quickly realizing what the Doctor was telling her.

The Doctor gave a physical shrug that was small enough that no one noticed the movement. 'There's no harm in just checking in with her.'

Sighing, Kayla carefully made her way over to the intercom and spoke into it. "Martha? Riley? How are you two doing?" she asked.

There was a pause and then Martha's voice, shaky due to her running, came through. "Area twenty-nine, at the door to twenty-eight!"

Hearing Martha's reply, the Doctor hurried to peer above the intercom, putting his glasses on. "You've gotta move faster!" he ordered through the intercom.

Despite her heavy breathing, it was clear that Martha huffed. "We're doing our best!"

Going back to his work, Kayla was left alone at the intercom. Leaning against the wall next to it, the brunette listened as Riley and Martha reached another door. "Find the next number in the sequence: 313, 331, 367…what?"

"You said the crew knew all the answers." Martha said, her voice growing slightly shriller as she realized that Riley didn't know the answer.

"The crew's changed since we set the questions," Riley responded.

Martha let out a huff of air. "You're joking…" she said with a sigh, her voice trailing off.

Having head what was going on over the intercom, the Doctor ran over and yelled, "379!"

"What?" Kayla yelled back, staring at the Time Lord in shock.

"What?!" Martha echoed.

The Doctor shook his head. "It's a sequence of happy primes. 379."

"Happy primes?" Kayla asked, frowning.

The Doctor ignored the brunette, which made her huff. Instead, he snapped into the intercom, "Just enter it!"

"Are you sure? We only get one chance!" Riley questioned.

Getting very annoyed, the Doctor started to speak ultra-quickly as he answered. "Any number which reduces to one when you take the sum of the square of its digits and you continue iterating until it yields one is a happy number. Any number that doesn't, isn't. A happy prime is a number which is both happy and prime, now type it in!"

The Doctor looked over to Kayla and shook his head. "Don't they teach recreational mathematics any more?" he said in wonderment.

Kayla shrugged. "I don't know what they teach any more than you do."

Hearing the sound of feet landing on the ground, Kayla peered over the Doctor to see McDonnell getting down from a ladder and send the couple a dirty, dirty look.

Suddenly, Martha's voice came through the intercom. "We're through!"

"Keep moving. Fast as you can," the Doctor shouted. Shaking his head, the Time Lord took off his glasses. "And, Martha, be careful. There may be something else on board this ship," he said in a quiet, worried voice.

Kayla sent him a sharp look. She knew that the Doctor had been thinking this through, but she hadn't expected him to voice his thoughts so…quickly.

"Any time you wanna unnerve me, feel free!" Martha snapped, though Kayla could tell that she was using the sarcasm as a cover for her fear.

Shaking her head, Kayla leaned over and said in a soft voice. "Martha, I can't promise you that you're safe, but I promise you that we're doing everything in our power to make sure we all get out of his alive."

Martha let out a soft breath and said, "Thank you."

"You're welcome," Kayla said with a soft smile.

The Doctor leaned over and flipped off the comm. Taking Kayla's hand, he looked her in the eye with a slight smirk. He tilted his head and waited until Kayla said with a slight huff through their mental link, 'You were right.'

The Doctor kissed her gently. 'It's going to be a slow process, Kayla, but I promise that Martha is going to forgive you.'

In response, Kayla looked down and then hugged the Doctor tightly.

"Impact in 30. 50."

The remaining crew stood in the engine room in a loose circle around the Doctor, watching him as he rambled on about what to do. The only one not in the circle was Kayla, who instead was leaning against the wall, a hand on her stomach almost protectively.

"We need a backup in case they don't reach the auxiliary engines in time. Come on! Think! Resources, what have we got?!" the Time Lord rambled.

Suddenly, Martha's voice came over the intercom. "Doctor? Or…Kayla?"

The Doctor looked up at his name. Seeing Kayla looking over at him, the Time Lord nodded. Taking a breath, the brunette moved over to the comm. system. "It's Kayla," She started. "What is it?"

Martha took a breath. "Who had the most number ones, Elvis, or the Beatles. That's pre-download."

Hearing the question, the Doctor hurried over to the comm. system as well. "Elvis. No! The Beatles! No! Wait! Um…um…" Kayla turned to the Doctor just in time to see the Time Lord's face screw up in pain. Seeing his hand reach up to slap the back of his hand, Kayla reached out and grabbed the Doctor's hand. "Argh! What was that remix? Um…I don't know! I am a bit busy!"

"I'm not," Kayla snapped at the Doctor. Turning back to the intercom, she took a deep breath and rubbed her stomach as she tried to thought. "Martha…I don't know," she said with a shake of her head. "I barely remember listening to those two musicians but that's only because of…" she swallowed hard and bit her lip. "Jack," she finished in a whisper.

Back at where he was working, the Doctor looked up sharply at the name Kayla had uttered, but she didn't notice. Instead, she was staring at the intercom, though the Doctor knew that she wasn't seeing it.

"Alright," he heard Martha say. "I'll ask someone else."

With the intercom crackling off, Kayla looked over to see the Doctor back to rambling. "At the very least, it'll buy us some more time," he was saying.

Kayla frowned and mentally asked, 'What?'

The Doctor's reply was almost too fast for her to keep up. 'We're going to use the generator to jump-start the ship. It'll buy us time enough that we'll be able to actually fix the ship!'

Not noticing their silent exchange, McDonnell was speaking to the Doctor. "That…is brilliant," she said with a slight shake of her head.

The Doctor nodded quickly, energetically. "I know! See! Tiny glimmer of hope!"

The crew around him started to smile some, the idea of hope all filling them up.

"If it works," Scannell said with a shake of his head.

McDonnell sent Scannell a sharp look. "Oh, believe me. You're gonna make it work," she basically ordered, the unadded 'or else' hanging in the air.

Looking dejected, Scannell walked off. Ashton stared over at McDonnell with respect that was mirrored, though not as strongly, on the Doctor's face as well.

"That was pretty good," Kayla said with a slight smile.

"Impact in 28.50."

The intercom crackled to life and Abi's voice, sounding very frightened, came through. "Doctor, these readings are starting to scare me."

Pausing in his work, the Doctor moved over to the intercom. "What d'you mean?"

"Well, Korwin's body's changing! His whole biological make-up, it… it's impossible," Abi explained. The Doctor frowned and started to think this over when, quite suddenly, Abi said in a shaky voice, "This is med-centre. Urgent assistance requested. Urgent assistance!"

His expression changing from concern to shock, the Doctor grabbed Kayla's hand and started to run out of the engine room. "Stay here! Keep working!" He yelled over his shoulder as they ran.

McDonnell, of course, followed them. The Doctor briefly felt the want to order her back, but they had not time to spare.

'Doctor, there's something wrong.'

The Doctor felt his entire blood go cold at the sentence from Kayla. 'What?! Is it the baby?!' he asked frantically.

'No. It's just that someone else is following us beside McDonnell.'

Listening intently, the Doctor allowed his sprint to slow as he heard the extra set of footsteps. Turning around, he glared at the man, Scannell, that was following them. McDonnell also turned around, a puzzled expression on her face.

"Captain?!" Scannell cried out, a frown forming on his face at the stop.

The Doctor nearly growled. As it was, he squeezed Kayla's hand tight. "I told you to stay in engineering!"

Scannell sent the Doctor a glare. "I only take orders form one person round here," he said in a proud voice.

Kayla shook her head while the Doctor just looked shocked. "You're an idiot," she snapped.

Regaining himself enough to laugh at the comment, the Doctor turned to McDonnell. "Is he always this cheery?"

Restarting their running, the foursome sprinted down the hall when, quite suddenly, a horrible scream came piercing through the comm. that McDonnell had brought with her.

"Doctor, what were those screams?" Martha asked in a soft voice through the comm.

McDonnell through the comm. to the Doctor, who handed it to Kayla. "Martha, I can't really answer you," she started truthfully. "Just concentrate on those doors. You need to keep moving forwards!"

"Impact in 27.06."

So, 42. I'm going to be honest, I'm not a huge fan of this episode. It has a great story line and all, but I just don't like it that much. For one thing, it feels like the writer didn't know how to write Martha, though that's a common theme during her season. She either loves the Doctor or she's overly sarcastic and rather bitchy. This is the later, which I hate because that just doesn't seem like the Martha they were trying to get across.

Anyways, I do like this chapter because, of course, the idea of Kayla being in danger with the Doctor is just fun because he gets so protected of his Bonded. And, we have another mention of Jack! Yay, Jack! I can't wait for him to come back!

And...review time:

Andrey258: Thank you so much! I completely agree about Martha, it's horrible what they did to her character and I'm glad that when she does come back in other seasons she's more smoothed out and natural.

NicoleR85: Thanks!