Hi guys. This is a really long chapter, but don't fret. It's the chapter you've all been waiting for!

The Doctor knew Nathan had picked up on the hesitation in his mood. He was incredibly vigilant for a boy of his age, and The Doctor knew he couldn't fool the young boy completely if he tried. Still, he had gone through with the plan, and he wasn't about to argue with that. He knew that he could have just potentially placed Nathan in more danger than he was to start with, but he couldn't risk the boy being used as leverage against him. It wasn't that he didn't want to have to have Nathan used against him, he had already proven that he would surrender for the boy's sake. It was the fact that, with Nathan being used against him, he couldn't do what he had wanted to. He had just under one day to find the TARDIS, find this key and save Clara. The alternative was unthinkable because he was gong to save Clara. He would.

He was pulled out of his thoughts by the lock on the door being opened. Once Nathan had left, he had immediately locked the door again afterwards to try and keep anyone from finding out about the boy's escape for as long as possible. He walked over to the door, ready to face his captors in the eye. They had no stopping him now that their leverage had disappeared.

The door swung open. "Hello Doctor." He recognised the voice immediately.

"Camille."

Camille smirked. "Now,now Doctor. You wouldn't want to upset me. Remember our little leverage?" The Doctor knew what was coming next. "What? Where is he?" Camille's voice had risen slightly in shock, as her eyes scanned the area that was the small room.

"Lost someone?" The Doctor laughed, with mock innocence in his voice.

Camille turned to The Doctor, the anger and humiliation blazing clearly within her bright green eyes. The Doctor took in the colour of her eyes closely. If she was a Night Walker then her eyes would be a deep, crimson red, showing all the blood and souls she had consumed. Also, she wouldn't have been able to come out in the twilight dawn, and yet she had. There was something different about Camille.

"Doctor! Where is he? Tell me!" She demanded angrily.

The Doctor smirked, enjoying Camille's distress. " I can honestly say I have no idea." Although it was the truth, Camille wasn't fooled.

"Where is he Doctor?" The Time Lord could tell the feminine figure in front of him was losing her patience.

"I don't know." Once again it wasn't a complete lie. The didn't know exactly where Nathan was, only that h as looking for the TARDIS somewhere in this godforsaken castle.

Camille seemed about to yell at him once more, but, at the last minute, she controlled her temper a, instead of yelling at The Doctor, she smirked at him instead.

" Fine, if you don't wan to tell me, you can tell Theo." The Doctor should have seen that coming he supposed. Oh well, that got him out of this room, and at the moment that' what he was aiming for.

"Okay, let's go." He declared enthusiastically, much to the annoyance of Camille. Before he even knew exactly what was happening, his hands were pinned behind his back once more in that same iron tight grip. He didn't mind to much through, except for the fact that Camille was putting added pressure onto his arms. His plan wasn't to escape, well not to start with anyway, because that part came after he had found out exactly what Theo was up to and once he had made sure Nathan was safe.

He studied the labyrinth of corridors he was led down, in case he needed to make a quick get away. They turned two lefts, three rights and another left before they arrived at a pair of large wooden doors, these ones in better condition tan ll the others put together.

"You better not anger Theo, Doctor. Things can get very ugly when he is angry." The Doctor understood the meaning behind the words.

" I'm sure I'll manage." He wasn't quite as confident as he sounded. He felt the pressure on his arms tighten even more if that was even possible, and he felt his arms go slowly numb behind his back. He didn't complain though.

"Theo." Camille spoke to the clandestine figure stood at the other side of the room, which was almost completely shrouded in darkness.

"Yes, my dear?" As of yet he hadn't turned round from his position, but when he did he saw his question answered.

"I fetched him for you, but when I got there the boy was gone." The Doctor watched as the anger became more evident in the royal's face.

"Gone? Gone where?" For his part, despite the anger on his face, Theo's voice was calm and collective.

Camille's, however, was not. " I do not know. He refuse to tell me where he was."

"Hey, now that's not true. I told you I didn't know where he was, which by the way Is the truth." The Doctor protested. He wanted to get things progressing.

" Is it now? Well, I'm pretty sure the boy was locked in with you, so you must know how he managed to escape?" It was phrased as a question instead of a statement.

" He escaped through the door." The Doctor stated the obvious.

Theo was getting angrier. " Yes, but how did he escape through the door when it as locked?" The Doctor decided to answer truthfully.

" I unlocked the Door." Was all he said.

"How?" Demanded Camille, still holding his arms in an iron grip.

"Oh, I don't know. Skill?" He joked mockingly.

" Doctor! Tell me!" Theo's voice was no loner calm and collective, it was angry. The Doctor decided to change tactics.

"Sorry, but I was under the impression that you no longer had any leverage against me, and I don't want to tell you." he knew he was pushing it but he also wanted Theo to give away any of his plans.

" Don't mess with us Doctor!" Camille yelled right into his left ear.

"Steady! That could send me deaf!"

"It would not matter." It was Theo's voice, this time calm again.

"What do you mean?" Now he was getting somewhere.

" I mean, with what we plan for you it will not matter whether you are deaf or not. It does not really matter that the boy is gone, in fact, that is good."

"Why is that good? Now you have no leverage against me." He had to keep pressing for answers now that Theo was finally willing to give them.

"It was risky, having him around. Especially near you." Just then, the wooden doors opened once more and Clara stepped in, he eye still burning red.

The Doctor's expression grew stony and placid. He watched as Clara walked past him and Camille, towards Theo.

"You called, master." He is not her master! No one is her master. Theo had no right to have done what he did to her.

"Yes, I did. I will be requiring your services momentarily, but first, let me finish my chat with our 'guest." Clara backed away into the darker part of the room, awaiting orders from Theo.

"Anyway, where was I? Oh yes. It was risky having that boy as close to you as he was. In fact, in fact, I'm surprised you even bought him at all."

"He was determined to come. He wanted to find Clara. I couldn't talk him out of it, but believe me, I wanted to."

Theo laughed. " Haha, The boy is determined, to determined, to save Clara. How Ironic."

The Doctor was getting more and more confused. "Why is that Ironic?"

"Because it is." Theo replied. "When you released the boy, Doctor, did you think about what would happen to him if you were to die?" Theo knew the answer just by reading The Doctor's face.

"Why? Am I going to die?" The Doctor didn't really want to know the answer.

"Not exactly."

"What do you mean, not exactly?"

"What do you think he means?" Camille smirked.

Suddenly, realisation hit The Doctor full force, and he was horror struck. "No!" He gasped.

Theo and Camille smiled.

"No, I will not become one of you." Briefly, The Doctor stole a glance over to the general direction he knew Clara to be in, but Theo didn't miss it.

"You are so determined to save Clara, but you are running out of time Doctor. She has until nightfall tonight, and it is mid-morning now. You know deep down that you are going to fail." Theo paused. "But, if you join us, you can be with her, forever, both of you immortal."

"Something tells me that won't be the case. You want me for something. What?" His voice was firm, authoritative.

"Okay, I'll tell you. Your machine, Doctor, only you can fly it. We need you to fly your machine, but also, because of your species, you would be the Ultimate Night Walker, our ultimate weapon with your mind."

"But don't you lose all memories when you are transformed?" The Doctor asked, trying to prolong the inevitable.

" Only humans do. You will lose all your unnecessary memories, but will keep the necessary ones, we think." He finished.

"You think?" The Doctor was getting worried.

"Yes, you see, you will be the first non human to have been transformed. We have never done anything like this before. As for your memories, we have a little potion that will enable you to keep the memories we want you to keep, and nothing more."

"And what if it fails?"

"At best you die. At worst you become a mutation, a monster." The Doctor gulped.

"You can't do this! You don't know what your doing!"

"Oh, but we do Doctor." This time it was Camille.

"Then at least let me find Nathan, get him out of here. I'll wipe his memory so he can't remember. You have no reason to harm him." The Doctor pleaded.

"You have my word that no harm will come to the boy. It was never my intention to harm him anyway. That wouldn't have boded well for any of us. Now, enough idle chit chat. Clara?"

Clara stepped out from the shadows. "Come here, my dear." The Doctor watched as Theo pulled out a small vial of putrid smelling purple potion and handed it to Clara.

"Give him this." Clara advance towards The Doctor, unscrewing the lid of the potion. "Wait!" Yelled The Doctor. "At least answer me one more question!"

Camille tightened her grip. "Enough!"

"Now, Now, sweetheart. I will answer his question, whatever it may be."

The Doctor asked his question. " There is one thing I don't understand. Camille. She is clearly a night walker like you, but she can go out in light, her skin is warm and she can change her eye colour. She also has that hypnotic power. So I want to know what she is."

Theo looked thoughtful, but truthful to his word, he answered the question. " She is a night walker, but she is different. When she was bitten, her transformation was only half complete. She was injured during the process, which meant that she was only half transformed. We were surprised she did not die. She is able to swap between human and Night Walker as she pleases, when she pleases, hence why she can change her eye colour and go out in light. As for her power, no one can explain it. She is truly one of a kind, and a fitting wife." Theo finished, sending a loving glance towards Camille.

"She's your wife?" The Doctor asked in awe.

"I believe you have had your question. Go ahead Clara." Clara advanced forwards, smiling evilly all the while. The Doctor tried to run, to get away, but Camille's iron grip was impenetrable. Clara was less than a couple of feet away now, and she was raising her hand to bring the potion to his lips. He tossed his head back, only to have it brutally tossed forward and held in place by Camille.

Clara bought the potion to his lips in one quick, swift movement. He tried to keep his mouth closed, but Clara, clever as she always was, used her other hand to forcefully press his cheeks together, opening his mouth, and pouring the potion inside.

The Doctor didn't know what he had expected as he drank the potion, but it wasn't what he experienced. He felt nothing. There was no change to how he was before the potion had been forced down his mouth. Theo, noticing his confused expression, elaborated. "It will not take effect until you are bitten." He nodded at Camille, who The Doctor now knew to be his wife, before she led him over to a stone table in the corner of the room which The Doctor had only just noticed, with Clara at her heels.

"Stop! You can't do this! You don't know what your doing!" He dug his heels into the floor, but the even stone did not help him in the slightest. No one replied to him this time. Instead, Camille pushed his down onto the table, so that he was laying down, and Clara stepped forward. The Doctor registered a clicking noise, coming from the bottom of the table, before he realised that his ankles were strapped in place, unable to move. He thrashed around in Camille's grip, all the while yelling at Theo not to do what he was about to do. Then he remembered how Clara had reacted to the sonic screwdriver. All he had to do was reach into his pocket and pull it out and he could escape. Clara was about to strap his left wrist to the table, and as she did, Camille released her grasp on him. Perfect! With his right hand, he slowly edged his way down to his coat pocket, thanking everything he could that he had put it in his right pocket and not his left. He managed to get his hand down to his pocket before it all went wrong.

"Stop him! What's he doing?!" Camille yelled, noticing The Doctor's subtle movements towards his pocket. Instantly, Clara was by his right hand, having used her new found vampiric speed to get there before The Doctor had time to even remove his hand. She grasped his hand in her own cold

one, and pulled it back towards where the restraint was.

"Clara, please don't do this! This isn't who you are. You need to fight it Clara.!" He knew almost instantly that his attempt to have some sort of effect on Clara had failed when she continued to fight him as he tried to keep er from restraining his hand. Everything he tried proved futile though as, finally, Clara had his hand clasped down to the stone table, before restraining it.

"What did he want?" Asked Theo. Clara reached into his pocket, and The Doctor was powerless to stop her. After a second she pulled out his sonic screwdriver and turned round to face Theo and Camille.

"What is that?" Camille asked, curiously. "What does it matter?" Asked Theo, before turning to address The Doctor. "The Doctor is powerless to stop us. In a matter of hours he will become one of us, forever."

"You can't do this! Please!" The Doctor yelled. "But, Doctor, you have failed. You have lost your TARDIS and you have lost Clara. Now you have no hope in returning her to her original state. And all along you have been protecting the one person who could have given you everything back. You have been protecting the one person who could have destroyed us all."

The Doctor listened intently before he realised. "You know who the key is." Theo smiled. "I do. I am surprised you have not realised before. Did you not notice his spectacular bravery? Did you not notice that he was eleven years old, the proper age? Did you not notice that he seemed to surprise you? Even when you told him your life story? Did you not notice how he didn't seem all to scared by us? Really, Doctor, are you as clever as they say?" He paused, before continuing.

"Nathan." The Doctor didn't even have time to gasp before sharp teeth came down, piercing into his neck.

SO, what did you think? Do you hate me? I bet you do!