"Let's try that again." The Doctor whispered cheerfully, pulling up another tile.

Meg moved to the opening, but the Doctor stopped her. "Me first."

Meg's mouth hung open. Is this a friend thing – taking turns risking their life for the other? She thought she would like it more than she did. Seeing the Doctor lower himself into the room first, a room that could hold a monster, she felt a strong impulse to pull him back up to safety. She reached out to do just that when he let go and disappeared into the darkness.

"Doctor." She whispered. "Talk to me. Are you okay?"

"Yeah. It's empty."

Meg sighed with relief and followed him. "Where are we?"

"We're… here." He pointed to a room on the map. "A little off course, but almost there…"

The Treveen leaped into the room. They were trapped. Nowhere to run. She pulled her gun out but kept it lowered, watching to see what the Doctor would do, first. After all, the soldier the gun recently belonged to didn't do him a world of good.

Eeeeeeeeeeeeeeeeeeeeeeeeeeeee!

A piercing whine came from the Doctor's sonic screwdriver. The creature shook its head, in pain, unable to cover its ears. It backed up a step.

"I don't want to hurt you." He said.

The Treveen growled and pointedly shook its head again against the noise of the screwdriver. It's almost like… it understood him. Meg thought.

"We didn't hurt your baby. You were in a crash. The humans here thought you were dead."

The Treveen growled again, tensing to spring – the pain of the sonic screwdriver's noise was not enough to keep it back.

It's done listening. Meg thought.

"This way." She said, pulling the Doctor into the hall and closing the door. He locked it with his screwdriver.

"We need to separate." She said.

"What?"

"So far only one's stalking us. The one it follows will lead it away, and the other leads everyone else to the TARDIS. We'll meet up when we can."

"You're…"

"That's plan B, right? We'll talk about plan C when we need to."

She turned and ran down a hallway. The Doctor watched her go, hoping the Treveen followed him when it broke through the door. He decided to loiter a while, to give himself better odds.

The door nearly split in two the first time the Treveen bashed itself into it. "Oops." He said, sprinting away. He thought he had more time.