Bella found herself thankful for her bond with the Doctor; she used it and her nose to follow her husband as he shadowed the other man. She watched from her hiding spot as the human Doctor ordered his companion Rosita to go back to their Tardis since what he was about to do was "no work for a woman."

Bella snorted at that. If it wasn't for Rosita he would probably be dead already.

After Rosita left she saw her Doctor head towards the front while the human Doctor went to the back door. She grinned when her Doctor surprised the man by opening it and letting him in. She waited for a beat and quietly let herself in behind them.

Bella eavesdropped on the two men as she shadowed them from room to room. She frowned when the human Doctor discussed the theft of children. She desperately wanted to make her presence known so that she could ask questions but she didn't dare risk it; her husband had never ordered her to go back to the Tardis before and she suspected that he would be furious if he discovered her disobedience. Why was he so determined to send her away? Bella wondered. She puzzled over the odd behavior as she dug through the dead man's stuff one room behind them while she listened.

Bella tensed; one of them was backtracking. She ducked into a closet and waited for him to pass.

Bella jumped as the door to her hiding spot was snatched open. Her husband grabbed her by the arm and jerked her out of hiding. "What do think you are doing!?" he hissed.

"How did you know I was here?" Bella wanted to know.

"I could smell you," he answered bluntly.

Bella sensed that he was angrier than he had ever been at her as he dragged her to the other room.

"Seems your wife is as headstrong as you are, Mister Smith," the other Doctor commented. "I thought you had sent her back home."

"I did," her husband answered. Yup, he was pissed.

"I've learned that turning them over your knee helps with disobedience," the other man supplied helpfully.

"If she keeps it up I just may take that advice."

You wouldn't dare, Bella glared at her husband. The look he gave her said otherwise. Bella dropped her gaze and sat down in a nearby chair.

Her husband walked back to the human Doctor. "Anyway, where was I? Ah yes! The fob watch. Legend has it that the memories of a Time Lord can be contained within a watch." He held out his hand. "Do you mind?"

The amnesiac handed him the watch without hesitation. Her Doctor lifted it up. "It's said that if it's opened..."

Her Doctor stopped talking when the watch's guts fell out. "Oh. Maybe not," he finished lamely.

"It was more for decoration," the other man explained, embarrassed.

"Yeah. Anyway," her Doctor changed the subject, "alien infiltration. What are we looking for?"

"Yes," the human Doctor said as he continued to dig through the dead man's belongings, "just look for anything different. Possibly metal. Anything that doesn't seem to belong. Perhaps a mechanical device that could fit no earthly engine."

Bella's eyes landed on the rolltop desk beside where she was sitting. She opened the lid and found two strange metal cylinders inside. "Like these?" she asked as she held them up.

"Brilliant!" her husband smiled as he took the devices from her, handing one to the other man. Bella smiled back, relieved that she had finally managed to do something right.

"Different and metal, you were right," her husband said as he examined the object. "They're infostamps. I mean, at a guess. If I were you, I'd say they worked something like this..." Bella's Doctor pressed one end of one of the tubes, causing images to stream out and appear on a nearby mirror.

"See? Compressed information. Tons of it. That is the history of London, 1066 to the present day. This is like a disc, a Cyberdisc," her husband explained. "But why would the Cybermen need something so simple? They've got to be wireless. Unless they're in the wrong century. They haven't got much power. They need plain old basic infostamps to update themselves."

As her husband talked the other man sat down abruptly, an odd expression on his face as he looked at the object in his hands. "Doc-uh, John?" Bella pointed at the other man when the Doctor looked at her.

Her Doctor approached the man. "Are you all right?"

"I'm fine," the other man said faintly.

Her husband crouched down in front of the other man. "No, what is it? What's wrong?" he asked softly.

Bella joined her husband, rubbing the other man's back soothingly. She could feel pain rolling off the man in waves.

"I've seen one of these before," the man said. "I was holding this device the night I lost my mind. The night I regenerated. The Cybermen, they made me change. My mind, my face, my whole self. And you were there. Who are you?" the man asked as he looked up at Bella's husband.

"A friend. I swear," her Doctor said.

Bella's hearts broke when the man looked up at her husband, tears in his eyes, "then I beg you, John. Help me."

"Ah," her husband said. "Two words I never refuse. But it's not a conversation for a dead man's house. It'll make more sense if we go back to the Tardis. Your Tardis." He got up and started taking one last look around the room. "Hold on, I need to do a little final check. Won't take a tick. There's one more thing I cannot figure. If this room's got infostamps, then maybe, just maybe, it's got something that needs infostamping."

Bella tensed as her husband opened a door that contained a metal robot behind it. She grabbed the human Doctor by the arm and pulled him up as she felt her husband's emotions ping with danger.

"Okay!" he said as he slammed the door closed and looked at them. "I think we should run."

"Come on!"Bella tried to pull the human Doctor out of danger but he was frozen.

"Run, Doctor! Now!" Bella's husband rushed over to help spur the other man into motion as the robot smashed through the door. They dashed through the house, encountering several more of the metal men as they tried to escape.

"What are those things?" Bella yelled.

"Cybermen!" her husband yelled back.

"Delete! Delete!" the Cybermen chanted, hot in pursuit of Bella and the two Doctors. They seemed to be everywhere!

"Stairs!" her husband yelled, pointing. "Can't lead them outside!"

Bella and the human Doctor raced up the stairs, her husband right at their heels. She turned at the landing when she didn't hear his footsteps behind her to discover that he was playing with an umbrella at the foot of the stairs. She looked around, searching for a weapon. There was a sword on the wall! Bella grabbed it and darted between the Doctor and the wall to whack at the nearest Cyberman. It drew back one hand and reached for her. "Delete!"

"Bella!" her Doctor screamed. He grabbed her by the back of her dress and threw her behind him. Bella tripped over her dress and fell, losing what little breath the corset allowed. She watched in shock as her husband snatched the blade from her hand and brandished it at the robots.

"I'm a dab hand with a cutlass," he warned the approaching Cybermen as he began to back away. "You don't want to come near me when I've got one of these." The machines brushed off his strikes as if he were hitting them with a feather. When he reached Bella he pulled her to her feet and shoved her behind him once more. "Move!" he ordered. Bella managed to untangle her feet from her skirts and ran to where the human Doctor was standing as he fiddled with one of the tubes.

"This is your last warning. Okay, this is your last warning! Okay, I give up!" The Time Lord continued to swing at the Cybermen; they continued to deflect his blows as he retreated. "Listen to me properly. Whatever you're doing stuck in 1851, I can help! I mean it, I'm the only person in the world who can help you! Listen to me! I'm the Doctor, you need me! Check your memory banks. My name's the Doctor. Leave this man alone. The Doctor is me!"

Bella was ready to grab her husband and drag him away, forget the other guy, when he planted his foot in the center of the nearest Cyberman chest and gave a shove. The robot tipped back, knocking the rest of them down the steps like a row of dominoes.

Then they got back up and tried again.

Bella grabbed her husband's arm. "We've got to get out of here!"

"No!" The Time Lord knocked her away. "Take care of the Doctor, Bella. Go!"

Bella wanted to scream at the idiot. What did he think he was doing? Even she could tell that they were outmatched. Was he trying to get himself killed? She couldn't think of a single way to help him except to make him run. But he wasn't listening!

"Delete!"

Closer and closer the Cybermen came. The sword was useless and yet the Time Lord kept swinging. They treated his weapon like a stick, grabbing it on the blade end, trying to wrest it out of his hands yet still Bella's Doctor kept on fighting.

Then her Doctor stumbled. Bella watched with horror as he fell backwards, could imagine triumph glinting in the robotic eyes as they closed in for the kill.

"Delete!"

Bella dived for her husband; she was going to drag him out of there whether he wanted her to or not. She wrapped her arms around his chest and started pulling him backwards. "Damn it Bella, Stop it!" her husband cursed as he worked to pry her hands loose.

A beam of light erupted from behind her and landed on the Cybermen. Metal screams echoed through the house as one by one their heads exploded. Bella whipped her head around and discovered that the human Doctor had somehow turned the tube he was holding into a weapon.

Time seemed to slow as they collapsed into headless piles of scrap.

Bella was so stunned she didn't resist when her husband pried her hands off of him. He got up and walked over to the human who had saved them and examined the makeshift weapon with his eyes.

"Infostamp with a Cyclo-Steinham core," he observed, calm once more. "You ripped open the core and broke the safety. Zap! Only the Doctor would think of that."

"I did that last time," the human shared softly.

"Come here. You'll be okay. Let me just check."

Bella watched from her spot on the floor as her husband took out a stethoscope and listened to his heart. Was he worried the guy was having a heart attack? She knew that he wasn't counting his hearts; a good sniff had already confirmed that.

"You told them you were the Doctor." The human looked like a betrayed puppy. "Why did you do that?"

"Oh, I was just protecting you," her husband deflected.

"You're trying to take away the only thing I've got, like they did." the man continued. "They stole something, something so precious, but I can't remember. What happened to me? What did they do?"

Bella's hearts clenched in sympathy. She knew what it was like to be lost. At that moment he stopped being a puzzle in her eyes and simply became a man in need of help.

"We'll find out," her husband assured the man. "You and me together."

Bella's hand touched something metal as she pushed herself off the floor. It was the sword. Thinking that it might come in handy, she pulled her shawl from around her shoulders and tied it around her waist. She tucked the sword inside the makeshift belt, using the shawl to cover it. The tip still showed at the bottom but hopefully no one would notice. She felt safer with a weapon.

She looked up to see her husband escorting the amnesiac away so she quickly moved to follow. "We'll talk later," he mouthed when he saw her approach. His face was calm but his mind told Bella a different story. He was furious.

~~~###~~~

A/N: I never realized how hard it was to write an OC into an episode! It is really hard trying to stay close to the spirit of canon while allowing your OC to be herself, much less having the canon characters react to her actions.

That said, I'm doing the best that I can. Please review, even if you hate it.