The Doctor strode between the two large ray guns. They were both like large boxes with a number of controls and cones on the end, staring each other in the face. One was a light grey in colour, noticably bulkier, with 'ILATORUEN' printed in bold black letters. The other, black and slim, held the title 'NEURONTALI' in bold grey letters. Flicking his gaze over them to make sure they were perfectly aligned, the Doctor turned a dial until a high pitched humming resounded around the room. Slowly a glittering grey mist, like fog, twirled from the metalic sphere at the point of the cone. It danced towards the Neurontali ray gun and it shook, shrouded in the grey mist for a moment, before it stopped and the grey mist dreamily floated back.
"So.. what's goin' on?" Rose asked, staring at the two ray guns in confusion.
"The Ilatoruen-"
"The what?" she asked and he pointed to the bulky grey box.
"Ilatoruen, it was invented by Professor Neurontali, who also invented the Neurontali. It's.. like a reversal beam. Changes the purpose of other ray guns, like these." he swept his hand over the other boxes like it, ranging in size, shape and colour. "So, the Neurontali ray WAS a growth ray, basically."
"And.. it's now a shrink ray." Rose nodded.
"In effect." he smiled, picking up the thinner black ray and leading the other three out of the building.
They stood behind the large hedge, peering round to watch the Tsarlar picking at a human skeleton, leaving only a mass of bones. Tory shuddered and stepped back, pulling a face.
"What's the distraction, then?" Jack asked.
"Well, we just need something that will make him concentrate on over there, behind him, so he won't notice the noise of the Neurontali ray and kill us." the Doctor replied brightly.
"Right, so... what...?" he asked, turning to see everyone looking at him. He rolled his eyes. "Fine, I'll go..." he muttered, darting round behind the Tsarlar. It looked up from its finished meal to watch Jack strolling past casually. His eyes were fixed on it. It slowly raised one scaly, three toed foot, pausing to see his reaction. He just stared back, forcing himself not to step back and make it run at him. It took a lumbering step forwards, its spiked tail waving from side to side behind it. The Doctor watched it, before glowering at the Neurontali, hitting it with his fist and smiling as a quiet buzz grew gradually louder. Jack watched him, looking back to the Tsarlar to see it closer than he'd anticipated. He leapt back, dodging it right as its toungue brushed past him. The next few seconds were a just to a blur of images to Jack. He saw its jaws open to reveal two thin, sharp, white teeth next to each other on each lip. Then it neared him quickly. He tried to dodge away, but this time he could feel its breath. Feel its teeth, sharp as knives, digging into his side. He winced, falling to his knees, then collapsing. Tory looked away, at the Neurontali, desperately wishing it would hurry up. She almost shouted, but she knew the Tsarlar would only attack them. Her wishes were answered - the buzzing was louder, and the ray was shaking. The Doctor flicked a switch on it and it shot a quick, misty, glittering black ray. The Tsarlar dug its teeth protectively into his catch, but it was soon hidden in a black mist. When it cleared, only a tiny green gecko was left, licking its bloody lips in confusion and bounding away. The Doctor watched Tory and Rose run to the ex-Time Agent's side and followed at a walk. He knelt down, checking his pulse. Jack tried to talk, but it just came out as a cough of blood.
"I'm fine!" he tried to say again, choking and closing his eyes in pain. Then he blacked out, falling limp.
"Infirmary." the Doctor said simply.