Lilith and the Doctor watched as Nancy hid the food she took from the kitchen of the house kitchen. She stands up to sees them, the Doctor smiled.
“How'd you follow me here?” the girl demanded.
“I'm good at following, me,” he shrugged. “Got the nose for it.”
“People can't usually follow me if I don't want them to.” Nancy said.
“My nose has special powers.”
Lilith rolled her eyes.
“Yeah?” Nancy raised her eyebrows. “That's why it's…”
The Doctor frowned. “What?”
“Nothing.” She paused. “Do your ears have special powers too?”
Lilith snickered. “Satellite dishes.”
“What are you trying to say?” the Doctor asked, somewhat insulted.
“Goodnight, Mister.” Nancy said pointedly and started to walk away.
“Nancy,” Lilith said, “there's something chasing you and the other kids. It looks like a boy and it isn't a boy, and it started about a month ago, right?” The younger girl looked back at them. “The thing we’re looking for, the thing that fell from the sky, that's when it landed. And you know what I'm talking about, don't you?”
Nancy shifted uncomfortably. “There was a bomb. A bomb that wasn't a bomb. Fell the other end of Limehouse Green Station.”
“Can you take us there?”
She shook her head. “There's soldiers guarding it, barbed wire; you'll never get through.”
“Try me,” the Doctor said seriously.
“You sure you want to know what's going on in there?” Nancy questioned.
“Sure as sure can be.” Lilith assured her.
“Then there's someone you need to talk to first.”
“And who might that be?” the Doctor asked.
“The Doctor.” Nancy answered.
Lilith glanced back at her ‘uncle’ before asking, “Doctor who?”
The Doctor used tech-binoculars to scan the area.
“The bomb's under that tarpaulin. They put the fence up over night. See that building?” Nancy pointed to a building a bit off. “The hospital.”
“What about it?” Lilith asked.
“That's where the doctor is. You should talk to him.”
“For now, I'm more interested in getting in there.” the Doctor nodded towards where the thing had landed.
“Talk to the doctor first.”
“Because then maybe you won't want to get inside.” Nancy said seriously and started walking away.
“Where're you going?” the Doctor asked her, not looking away from the binoculars.
She looked back. “There was a lot of food in that house. I've got mouths to feed. Should be safe enough now.”
“Can I ask you a question? Who did you lose?”
Nancy turned to Lilith. “What?”
“The way you look after all those kids. It's because you lost somebody, isn't it? You're doing all this to make up for it.” Lilith reasoned.
The young girl sighed. “My little brother, Jamie. One night I went out looking for food. Same night that thing fell. I told him not to follow me, I told him it was dangerous, but he just. He just didn't like being on his own.”
“In the middle of an air raid? What do you think happened?”
“Amazing.” the Doctor said.
“1941. Right now, not very far from here, the German war machine is rolling up the map of Europe. Country after country, falling like dominoes. Nothing can stop it. Nothing. Until one, tiny, damp little island says no. No. Not here.” He chuckled. “A mouse in front of a lion. You're amazing, the lot of you. Don't know what you do to Hitler, but you frighten the hell out of me. Off you go then do what you've got to do. Save the world.” He headed towards the hospital.
Lilith smiled at Nancy. “Take care!” she called after her as she walked away.
In front of the hospital, the Doctor used his sonic screwdriver to open the padlock on the ornate metal gates to the grounds. Inside the long, dark wards, every bed had a very still patient in it. Lilith noticed they were all wearing gasmasks. An elderly doctor appeared, leaning on a walking stick.
“You'll find them everywhere.” He said. “In every bed, in every ward. Hundreds of them.”
“Yeah, we saw.”
“Why are they still wearing gas masks?” the Doctor wondered.
“They're not. Who are you?”
Lilith saved him by asking, “Are you the Doctor?”
“Doctor Constantine. And you are?”
“I’m Lilith Smith and this is my uncle. Nancy sent us.”
“Nancy?” Constantine repeated. “That means you must've been asking about the bomb.”
“Yes.” the Doctor nodded.
“What do you know about it?” Constantine asked.
“Nothing. Why I was asking. What do you know?”
“Only what it's done.” He motioned around the room.
“These people, they were all caught up in the blast?” Lilith asked.
“None of them were.” The human doctor chuckled which turned into coughs. He sat in a chair by the desk.
“You're very sick,” the Time Lord doctor noted.
Constantine nodded. “Dying, I should think. I just haven't been able to find the time. Are you a doctor?”
The Doctor shrugged. “I have my moments.”
“Have you examined any of them yet?”
“Don't touch the flesh,” Constantine warned.
“Which one?” the Doctor asked.
The Doctor pointed his sonic screwdriver at the nearest patient and scanned, Lilith studied one of the nearby patients, sans-screwdriver.
“Conclusions?” Constantine prompted.
“Massive head trauma, mostly to the left side. Partial collapse of the chest cavity, mostly to the right. There's some scarring on the back of the hand and the gas mask seems to be fused to the flesh, but I can't see any burns.”
“Same with this one.” Lilith frowned. “Exactly the same.”
“This isn't possible,” the Doctor said. He crossed the room and examined another person. “This isn't possible.”
Constantine shook his head again. “No.”
“They've all got the same injuries.”
“Identical, all of them, right down to the scar on the back of the hand.”
“How did this happen?” the Doctor demanded. “How did it start?”
“When that bomb dropped, there was just one victim.” Constantine said.
“At first. His injuries were truly dreadful. By the following morning, every doctor and nurse who had treated him, who had touched him, had those exact same injuries. By the morning after that, every patient in the same ward, the exact same injuries. Within a week, the entire hospital. Physical injuries as plague. Can you explain that? What would you say was the cause of death?”
“The head trauma,” the Doctor said.
“Asphyxiation?” Lilith guessed.
“The collapse of the chest cavity.”
“All right,” the Doctor gave in. “What was the cause of death?”
“There wasn't one. They're not dead.” Constantine hit a garbage basket with his stick and the noise made the patients sit up in their beds. “It's all right. They're harmless,” he said when Lilith jumped and the Doctor quickly retreated from beside the bed. “They just sort of sit there. No heartbeat, no life signs of any kind. They just don't die.”
“And they've just been left here?” Lilith said outraged. “Nobody's doing anything?” The patients laid down again.
“I try and make them comfortable. What else is there?” Constantine said.
The Doctor frowned. “Just you? You're the only one here?”
“Before this war began, I was a father and a grandfather. Now I am neither. But I'm still a doctor. I suspect the plan is to blow up the hospital and blame it on a German bomb.”
“Probably too late.” the Doctor said.
“I know. There are isolated cases.” Constantine coughed. “Isolated cases breaking out all over London.” The Doctor started to approach him. “Stay back, stay back. Listen to me. Top floor. Room eight oh two. That's where they took the first victim, the one from the crash site. And you must find Nancy again,” he insisted.
“Jamie.” Lilith realized. “The boy is her brother, Jamie.”
Constantine nodded. “She knows more than she's saying. She won't tell me, but she mi…mi…” He looked like he was choking for air. “Mu… mummy. Are you my mummy?”
Lilith and the Doctor watched in horror as, starting with the mouth, Doctor Constantine’s face turned into a gasmask. “What the hellwas that?” Lilith breathed.
“Hello?” called a male voice that caused Lilith to stiffen.
The Doctor rushed over to the door and the two went into the hallway.
“Good evening. Hope we're not interrupting,” the man said. Lilith squeaked, eyes wide. He was so young. “Jack Harkness. I've been hearing all about you two on the way over.”
“He knows. I had to tell him about us being Time Agents.” Rose said.
“And it's a real pleasure to meet you, Mister Spock, Miss Smith.” Jack walked forward to the ward. Lilith laughed.
The Doctor looked at Rose. “Mister Spock?”
“What was I supposed to say? You don't have a name. Don't you ever get tired of Doctor? Doctor who?”
“Nine centuries in, I'm coping. Where've you been? We're in the middle of a London Blitz. It's not a good time for a stroll,” he scolded.
“Who's strolling?” Rose asked, following Jack. “I went by barrage balloon. Only way to see an air raid.”
“What?” Lilith and the Doctor exclaimed simultaneously.
Rose ignored them. “Listen, what's a Chula warship?”
The Doctor frowned. “Chula?”
Jack, using a wrist tricorder, was examining the patients. “This just isn't possible. How did this happen?”
“What kind of Chula ship landed here?” the Doctor asked.
Jack looked at him, confused. “What?”
“He said it was a warship.” Rose said. “He stole it, parked it somewhere out there, somewhere a bomb's going to fall on it unless we make him an offer.”
“What kind of warship?”
“Does it matter? It's got nothing to do with this.” Jack said, sounding agitated.
“This started at the bomb site. It's got everything to do with it. What kind of warship?” the Doctor demanded.
“An ambulance! Look.” He produced a hologram of it from his wrist device. “That's what you chased through the Time Vortex. It's space junk. I wanted to kid you it was valuable. It's empty. I made sure of it. Nothing but a shell. I threw it at you. Saw your time travel vehicle; love the retro look, by the way, nice panels. Threw you the bait—”
“Bait?” Lilith interrupted.
“I wanted to sell it to you and then destroy it before you found out it was junk.”
“You said it was a war ship.” Rose accused.
“They have ambulances in wars.” Jack said as if it was obvious. “It was a con. I was conning you. That's what I am; I'm a con man. I thought you were Time Agents. You're not, are you?”
“Just a couple more freelancers.”
Jack rolled his eyes. “Oh. Should have known. The way you guys are blending in with the local colour. I mean, Flag Girl was bad enough, but U-Boat Captain? Anyway, whatever's happening here has got nothing to do with that ship.”
“What is happening here, Doctor?” Rose asked,
“Human DNA is being rewritten,” he answered, “by an idiot.”
“What do you mean?”
Lilith gestured around the room. “Some kind of virus is converting humans into these freaky looking gas mask zombie things.”
“But why?” the Doctor wondered. “What's the point?”
Suddenly, all of the patients sat up. “Mummy? Mummy?” they all started saying, standing up.
“What’s happening?” Rose gasped.
“I don’t know,” the Doctor said. “Don’t let ‘em touch you.”
“What happens if they touch us?”
“You’re looking at it.”
The patients all advanced, backing the group of four against a wall. “Mummy? Mummy? Mummy?” they chanted.
As was becoming a habit, Lilith swore in Gallifreyan. “Ah, hell.”