Katy turned to see John Smith running after her, she raised an eyebrow but waited until he stopped.

"Yes, John?" He smiled and sighed.

"Did you enjoy class?"

"Yeah, it was great. I actually got a lot more interested in physics!" Katy said laughing. John just flashed his heart breaking smile making her go weak at the knees.

"Fantastic! So I was wondering….." But he was cut of by a tanoy announcement which rang throughout the bustling halls.

"Could Katy Lewis please meet me in my office," Katy raised an eyebrow. What could the headmaster possibly want her for? Hopefully nothing bad had happened at home. She looked back at John Smith and shrugged.

"Well I best go, I'll see you later then," She walked of waving, she couldn't stop smiling. The Doctor waved back and waited for her to turn the next corner. That's when he began to follow her to the headmaster's office.

******

Katy soon stood outside the head masters office and knocked three times. It soon opened and she entered to see Mr Kingsley sitting at his office. He motioned her to take a seat which she did happily. He stood up and perched himself on the desk in front of her.

"So Katy Lewis, I hear you have been doing very well in your lessons recently," He spoke.

"I have? Well…"

"Yes you have. And I just brought up to my office because we need you." Katy sat back a bit. Was this normal? Who needed her?

"Who do you mean 'We'? What for?" The headmaster smirked making Katy very uncomfortable. Suddenly he lunged forward making Katy fall back in her chair. Her headmaster began to scratch at her arms and she looked to see her had teeth like a dog or wild animal. Before she knew it the door was flung open to reveal her new teacher John Smith.

"John?!" She cried. He pulled out a small device like a pen and a blue light shone out of it. It then produced a horrific noise that made the headmaster stumble back and hide in the corner. The Doctor ran towards Katy and held out a hand which she gladly took. As soon as she stood up she fell back down again, but the Doctor just caught her in time. He noticed the marks on her arms and face and grabbed her hand. He pulled her out of the office and pulled out his sonic device to lock the door.

"John? What was that?" Katy cried, still in shock.

"My name isn't John," He said as he checked the door was locked.

"What is it then?"

"I'm The Doctor," They heard a load bang which was the creature throwing itself into the door which was now locked. The Doctor grabbed Katy's hand and they ran down the empty corridor. Everyone was in lesson which made it much simpler. As soon as they were outside they stopped and gasped for breath.

"What is that thing?" Katy said as she began catching her breathe. The Doctor stood up straight and looked around.

"That was a Polking, very dangerous," Katy soon stood up straight like the Doctor. Was he being serious?

"You're joking,"

"Katy, I'm very serious. If we don't get everyone out of the college then who knows what will happen." Katy thought for a minute. She ran back into the college, the Doctor watching her. She smiled at him as she pulled the fire alarm making the bell ring loud throughout the college. The Doctor smiled and they both ran outside. They watched as the students all ran out in panic and worry. The Doctor then ran inside making Katy run after him.

"Doctor!" He turned around and ran towards her.

"Katy what ever you do don't follow me, Keep everyone outside." Katy, disappointed, nodded and ran back outside. The teachers began to keep everyone in single file, what could Katy do? She turned back to the college then back and her fellow students. She turned back and ran towards the headmaster's office. There she saw the Doctor running out of the office, flames flickering out of the office. Katy stood shocked then the Doctor grabbed her shoulders.

"Katy what did I tell you!" He yelled at her. But she couldn't answer because of the small explosions inside the office. He killed it. He just killed the creature. The Doctor grabbed her hand again and then ran outside the college; Explosions now coming from all areas of the college. Once they were outside the college The Doctor noticed the fire service had arrived. He began to walk off making a concerned and curious Katy follow.

"Doctor?" He turned and Katy noticed he had no expression on his face.

"Why didn't you say that was your name? And how did you know what the creature was?" The Doctor sighed.

"It's a long story,"

"Well, I have time." The Doctor smirked and held out his arm which Katy then wrapped her arms around. He had a lot of explaining to do.