Amy stood up "point me at the light." She said.

"What are you doing?" She felt movement next to her as Marco moved to stand next to her. "You can't open you eyes."

"I can't open them for more then a second, that's what the Doctor said. I still have a bit of countdown left." she shrugged.

"Ok but very quickly." Marco sighed. He put his hands on her shoulders and gently turned her so she was facing the light. "You can open your eyes."

She opened her eyes and felt a tight knot in her stomach. "That's the crack in my wall. It's the same shape." A long W shaped beam of light was flooding the forest. It was exactly the same shape as the crack in her wall, the same shape as the crack in the flight deck.

"Close your eyes," She didn't "Now!" Marco demanded. She ignored him.

"It's following me. How can it be following me?" She said, as Marco pulled her back into a seated position and put his hand over her eyes.

"Are you okay?" he asked her.

"Yeah, but it was the same shape as the crack in my wall." she shivered.

"I'm going to check it out." Pedro said behind her.

"Why don't you just wait until Crispin and Phillip get back?" she frowned. She felt Pedro walk passed her.

"Crispin and who?"

"Crispin and Phillip. You sent them to have a closer look at it. Why not just wait until they get back?" Amy said.

"I'm sorry ma'am, there was no Crispin or Phillip on this mission."

"The hatch is open," Father Octavian said "Dr Song, Aderyn, get through."

The Doctor had his back to them. He was mumbling continuously under his breath.

"Doctor!" Aderyn said. He looked round at her.

"Cracks. Cracks in time. Time running out. No, couldn't be. Couldn't be. But how is a duck pond a duck pond if there aren't any ducks? And she didn't recognise the Daleks. Okay, time can shift. Time can change. Time can be rewritten." He said.

"What are you talking about?" Aderyn asked.

"Time can be unwritten." The Doctor said to her.

Father Octavian pulled on the back of Aderyn's jacket "Get through, now." He said to her.

"Doctor, we need to move." River said.

"Yeah I'll be there in a second. Go, both of you."

Aderyn and River disappeared into the hatch.

"Doctor, you as well," Father Octavian said. "The Angels could be here any second."

The Doctor laughed "there's worse things here then the Angels."

The lights flickered, then went out. The lights were out for a split second, but a split second was all that was needed.

"I beg to differ, sir."

The Doctor looked round at Father Octavian. There was an Angel stood behind him, with a stone arm around his neck.

"Let him go." The Doctor demanded.

"It can't let me go while you're looking." Father Octavian pointed out.

"But if I look away it will kill you."

"It will kill me anyway. You have to go, sir. You have to leave me."

"Before you sent Pedro, you sent Crispin and Phillip." Amy said desperately.

"Who's Pedro? There has only ever been me and you here," Marco stood up "I need to get a closer look at that thing. Stay here and don't open your eyes." He said to her.

"Please don't go. There was five of us and you sent Crispin, Phillip and Pedro to get a look at that light and now you can't remember them."

"I can assure you there has only ever been me and you. Here," he reached for her had and put a small device into it "It's the spare communicator," he told her "I'll keep in contact the whole time. I won't get too close. I just need to see what it is."

He ignored her protests and walked towards the light.

Father Octavian could see why Aderyn had become frustrated with the Doctor, he just wouldn't listen to sense "I'm dead no matter what, there's nothing you can do to save me. But you can still save the others. You have to go."

"You'll die." the Doctor said.

"Yes, yes I'm dead but before you go, listen to me. You can't trust her."

"Trust who?"

"River Song. You think you know her but you don't. You don't know who and what she is. She was in the Stormcage for killing a man. A good man, a hero to many. You need to know that because you need to protect Aderyn. She adores Dr Song, that much is obvious. You need to keep Aderyn safe from her."

"Who did she kill?" the Doctor asked. As much as he wanted to look Father Octavian in the face to try and gage whether he was telling the truth, it was too risky to look away from the Angel, even for a second.

"You really don't want to know sir. I've already told you more than I should have. Just leave me now and keep the others safe."

"You'll die." The Doctor said again.

"I will die in the knowledge that my courage did not desert me at the end. For that I thank God, and bless the path that takes you to safety." Father Octavian said.

"I'm sorry Father, I wish I had know you better." The Doctor held out a hand.

"I think sir," Father Octavian replied, shaking his hand "You've known me at my best. Now go."

The Doctor dived through the open hatch and closed it behind him. As the hatch closed he heard the sound of bones breaking.