Alyssa let go of the console when the shaking stopped. "Well this is it. Thanks for taking me to all those amazing places" she unclasped the chain that the TARDIS key hung from and placed it on the console, ignoring the sad hum the ship emitted. "I don't usually like saying goodbye but under the circumstances, I'll make an exception" Alyssa took a breath "Goodbye TARDIS".

She patted the console one last time before heading for the ramp. When Alyssa reached the doors, she heard a soft click. She grasped the handle and tugged only to find that the doors were locked. The TARDIS had locked her in!

"Look I have to go. The Doctor wants me to get on with my life and I can't do that if I'm locked in here. So could you please unlock your doors?"

No the TARDIS replied making Alyssa frown.

"Why not?" she asked turning back to face the console.

You have to go back

"I can't, I was the one who decided to leave", Alyssa said "Even if I changed my mind and I could go back, he'd send me away again".

You have to go back the TARDIS repeated.

"Why?" Alyssa asked.

You have to save the Doctor

"How am I supposed to do that?" Alyssa questioned "I'm just an ordinary human, there's no way I can save him from the Daleks".

You are far more than just an ordinary human, Ali. You're special. I know, he knows it. And there is a way you can save him.

"How?" Alyssa asked. Even though she had been the one to decide to leave, it still didn't stop her from wondering if there was a way to save him. Despite the things she promised she'd do for the Doctor.

Look into my heart

"Your heart? But that destroyed Margaret and Tanya" Rose and Jack wanted an explanation as to what had happened to Margaret so the Doctor explained that it was the heart of the TARDIS. He'd also told Alyssa that it was what had destroyed Tanya as well.

They'd hurt you. I would NEVER harm you Ali, never.

Alyssa felt a little assured by that but she was still a little uneasy about looking into the heart of the TARDIS. "So I just look into your heart and it'll help me save the Doctor?" she asked slowly walking up the ramp to the console.

Yes. You don't need to be afraid

"Easy for you to say", Alyssa muttered "You're not the one who's got to look into the heart of a sentient ship that is powerful to literally destroy two people/aliens".

True. But you really don't need to be afraid. As I said before I would never harm you.

"What do I need to do?" Alyssa asked, decision now made.

In response the panel containing the heart cracked open. Pull up the panel

"I hope I'm not going to regret this", she murmured going over to the panel. She took a deep breath, reached out and pulled it up. Alyssa gasped as golden light streamed into her eyes, she now knew why the TARDIS had chosen her.

As she stared into the heart, the engines started up and soon they were flying back through the time vortex back to the Doctor.

~Satellite 5/Game Station~

The Doctor braced himself for his death when he heard the familiar wheezing of the TARDIS. He stares in shock as the doors fly open to reveal Alyssa standing there, golden light spilling out around her. When she stepped out, the Doctor stumbled backwards falling to the ground. "What've you done?" the Doctor asked scared.

Alyssa looked down at him, her green eyes now turned gold from the vortex. Even her red hair had turned golden from her bonding with the TARDIS "I looked into the TARDIS and she looked into me", she said her voice echoing.

"You looked into the Time Vortex. Ali, no one's meant to see that", the Doctor said staring at her.

What Alyssa said next came as a surprise to the Time Lord "I am. It's why she chose me, I was born to do this", she said.

"This is the Abomination!" the Emperor Dalek screamed.

A Dalek fired at her but Alyssa simply held up her hand. The bolt froze and reversed back into the gun. The Doctor stared at her amazed "I am the Bad Wolf, the TARDIS's daughter…the daughter of time…I take the words…" Alyssa waves her hand at the words Bad Wolf Corporation "I scatter them in time and space" they rise up and float away "a message to lead myself here".

"Ali, you've got to stop this. You've got to stop this now", the Doctor said urgently. Alyssa looked straight ahead as if she hadn't heard him. "You've got the entire vortex running through your head. You're going to burn", he added his concern growing for the young woman. Even though the TARDIS had chosen her for this, there was no way she'd be able to survive with the vortex flowing through her. She was only human. A special one at that but she was human, none the less. Having the vortex in her for too long would inevitably kill her.

Alyssa suddenly looked at him "I want you safe", she said, tears in her eyes "My Doctor. Protected from the false god".

"You cannot hurt me. I am immortal" the Emperor Dalek declared. Alyssa looked up at the Dalek facing her.

"You are tiny. I can see the whole of time and space. Every single atom of your existence, and I divide them" Alyssa raised her hand and the Dalek in front of her disintegrated into golden particles "Everything must come to dust…all things. Everything dies" she looked to the side and the Daleks lined up were also reduced to golden particles "The Time War ends", Alyssa said as the Emperor and his entire mother ship turned into golden particles, dissolving away into oblivion.

"Ali, you've done it. Now stop. Just let go", the Doctor urged.

"I can't. There's one more she wants me to do", Alyssa said.

In the corridor, Jack takes a huge intake of air as his eyes snap open….

The Doctor felt what she'd done and knew it was wrong. Why would the TARDIS want her to bring Jack back to life? He was broken from his thoughts when Alyssa spoke again "I can see everything. All that is…all that was…all that ever could be"

The Doctor stands up abruptly. He understood completely what she could see, he was it all the time "That's what I see. All the time. And doesn't it drive you mad?"

"Yes", she replied "it's too much" her voice started to tremble and the Doctor saw her face contort in pain "My head…its killing me…"

The Doctor reached out, cupping her face "I think you need a Doctor", he said softly before leaning down and pressing his lips against hers. As he kissed her, the time vortex flows out of her eyes and into the Doctor's. Slowly, they parted, gazing at each other before Alyssa's eyes fluttered closed and fell into his arms, unconscious.

The Doctor laid her carefully down on the floor before turning to the TARDIS and exhaling the time vortex out of his mouth. The golden energy flowed back into the ship and its doors close. He knelt down, regarding the young woman whose hair had gone back to its original red as he reached out and tenderly stroking her face.

A moment later, he gently picked her up and carried her into the TARDIS, the door swinging shut behind him. The Doctor put her down on the grilled floor and sent the TARDIS into the time vortex. He winced in pain as the regeneration process was starting. I can't go. Not yet the Doctor thought. It wouldn't be fair to Alyssa if she woke up to find he'd changed.

Eventually she regained consciousness. "What happened?" Alyssa asked sitting up and rubbing her head rather confused.

"You don't remember?" the Doctor asked mildly surprised. When he'd pulled the vortex from her, he had seen why the TARDIS had told him she was important. Why she'd called herself the ship's 'daughter'. But he was surprised that she didn't remember what had happened.

Alyssa shook her head, getting to her feet "No. I remember a golden light… and there was this singing…"

"That's right! I sang a song and the Dalek's ran away", the Doctor said cheerfully.

Alyssa closed her eyes, frowning in concentration as she tried to recall something else. While she did that, the Doctor noticed the veins in the hand resting on the console shimmer for a brief moment with a golden light.

"I can't remember anything else…" Alyssa said opening her eyes and looking at the Doctor.

"Ali I was going take you to so many places. Barcelona. Not the city Barcelona, the planet Barcelona. You'd love it. Fantastic place. They've got dogs with no noses" the Doctor laughed at his own joke. Alyssa giggled too "Imagine how many times a day you end up telling that joke, and it's still funny"

"Then why can't we go?" she asked.

"Maybe you will. And maybe I will. But not like this", the Doctor replied.

Alyssa was confused by that "what does that mean?"

The Doctor opened his mouth to explain when he was suddenly forced backward with a blast of golden light. He clutched his stomach as though he'd been punched. "Stay away!" he said urgently as Alyssa rushed forward, her face full of concern.

"Doctor, what's going on?" she asked looking at him worriedly.

"I absorbed all the energy of the Time Vortex, no one's meant to do that" he screwed his eyes up in pain "every cell in my body is dying"

Alyssa's eyes widened in horror "oh god", she breathed what I have a done? "I'm so sorry, I meant to save you. Not kill you"

"It's not your fault Ali. And you did save me, in so many ways", the Doctor managed to say.

"Isn't there anything we can do to save you now?" Alyssa asked really hoping there was.

"Yeah, I'm doing it now. Time Lords have this little trick, it's…sort of a way of cheating death. Except… it means I'm going to change. I'm not gonna see you again, not like this. Not with this daft "old face" the Doctor laughed, not wanting to scare her "and before I go, I just wanna tell you that you were fantastic…brilliant even" he smiled at her, very proud of the woman he had fallen for "and d'you know what?"

"What?" Alyssa asked, struggling to fight back her tears.

"So was I" the Doctor grinned at her before seemingly exploding with orange energy. Alyssa stumbled backwards, watching with wide eyes as the Doctor she knew change. His hair lengthened, his face changed and he grew slimmer.

The light suddenly died away, revealing a completely different man wearing the Doctor's clothes. He looked slightly surprised for a moment before turning to Alyssa who was staring at him.

"Hello! Okay… Ooo" the Doctor stopped and frowned, running his tongue over his teeth "new teeth. That's weird. So, where was I? Oh, that's right. Barcelona"

The newly regenerated Doctor grinned at her.

Ok guys and girls, we've come to the end Fantastic Voyage, the rewrite. Thanks for everyone who followed, faved and reviewed this story. Also a shout out goes to frosty600 and SaberbladePrime for being my betareaders and idea givers!