Lilly's worst fears were realised. Those people were zombies. No, they were people, with families, and jobs and lives. Now they were condemned to this. The thought made her sick. Now she was talking to a woman who was going to die.

"Lilly. It's going to consume me."

"Do you have any idea what caused it?"

"I know there's no way of stopping it." Lilly choked a tear out. She was talking to a condemned woman.

"Louisa, do you know what caused Benji to get infected?"

"No. He was near to the waterfall. And then he just started complaining. Like it was instant, and he was. Oh, I feel so bad."

"OK, you make yourself comfortable. Do you have a data analysis machine of some kind?"

"Yes... It's on the lower level... over by the deceased plaque."

"Right. I've got an idea."

Lilly walked out of the shooting gallery, leaving the gun behind. She looked over at the waterfall, and noticed the light shining above. The sun seemed to be a much brighter blue than it was before. Almost as if it was advancing on the Earth. She took a specimen jar and collected some of the water.

She slotted it into the machine, and took a note of what the screen said. Seranium 75%. Lilly was shocked at this, and she knew that prolonged exposure to this would poison someone. The only reason she hadn't been poisoned was because she hadn't been there too long. Zombification must have been a side effect of the contact Torchwood has with the alien tech.

"Louisa, we've got a serious problem. Does the waterfall have an off button?"

"Sure, it's just at the top of the stairs." Lilly rushed to the top, trying to find the button, only to realise it was on the other side. Lilly gulped. She would not be able to reach it without putting her arm through the water.

She put her hand inside a bag, and slammed it against the button. The water had not touched her skin. She was safe.

"Louisa. I've done it. It was the water... Someone was trying to poison you."

Silence. "Louisa." There was still silence. Lilly began to panic, and a gunshot rang out throughout the building. She closed her eyes, knowing one of her colleagues was dead.

"Get over it." She thought. "This is the reality of this job."

She heard a noise behind her, and realised that someone was coming. She looked through the glass partition in the door and could see the yellow sores. It was Benji. She realised that Louisa was dead, and Benji was coming for her. She reached for her gun... but she didn't have it. Caught between a rock and a hard place, Lilly needed to hide. She saw the metal armoury, and hid in there as Benji entered the room.

He could feel her presence, and stood at the door, banging and trying to get in. Lilly was scared, her heart was beating... and she realised that she was next. Suddenly, Rupert arrived, and shot Benji dead. Lilly opened the door, and Rupert hugged her.

"Shh, you're safe now." That was when she felt the blood.

"No. You're going to die. You've been poisoned. And one of them has bitten you."

"It was Louisa. Lilly, you need to kill me. I can't let this get out."

"No. Please. I can't."

"Yes, you can. I believe in you. Captain Harkness believes in you, and the Doctor believes in you. Please make the world a better place for everyone when I'm gone. Carry on the work of this organisation."

He backed her up into the shooting gallery, and grabbed her gun. He handed it to her.

"Kill me." He was begging her now, and she couldn't bear it, yet not a single tear rolled down her face. She had to keep her cool for him.

Her hand shaking, she picked up the gun, put it to his head, and fired. He fell to the floor, dead, and Lilly Klein was alone. She fell to the floor, sobbing. She needed someone to tell her it was all going to be alright, but no one was there.

She remembered Rupert's words. Make it a better place. She stood up, tears still in her eyes, and staggered over to the HQ contact machine.

"Everyone's dead... and I'm the only one left..."