A/N: Chapter4 now!!! Hope you enjoy!!!

Chapter 4

Harry quickly scrambled into the ship, and the Doctor closed the door with his good arm. As soon as Harry was inside, he casped loudly.

"it's bigger on the inside!" He stated in awe.

"Yup!" The Doctor replied happily.

From the outside of the ship, the blue police box just looked like a blue police box, but from the inside, it was completely different on the inside. Harry was expecting it to be a tiny, cramped caustraphobic place, but it wasn't. It was massive. Harry was standing in a large console room, but he could see corridors branching off in different directions. It was amazing.

"Usually people expect it to be tiny, but it's actually reletively sizable." The Doctor explained.

"Reletively sizable?" Harry repeated, "It's massive!"

The Doctor grinned, "Yeah."

"So, where's Martha?" Harry asked conversationally.

"She went to look for my sonic. I think I dropped it when I fell."

"What's a 'sonic'?" Harry asked curiously.

The Doctor gasped, then said, "Oh, sorry, I forgot you wouldn't know. It's a Sonic Screwdriver. Basically, it can open any lock, mechanical or electronic, and it can also be used to repair things, or used as a weapon."

"So it's sort of like a wand then?" Harry questioned.

"In some aspects yes," The Doctor replied, "But in some aspects no."

Harry just nodded and turned away. It was at that point were the Doctor spotted Harry's hand.

"Harry, your hand's bleeding!" He stated shocked, pointing at Harry's hand.

"Oh, I...I know." Harry replied, trying to pull the sleeve of his jumper over the cut.

"Let me see it." The Doctor asked curiously, walking closer to Harry.

"No," Harry replied, moving back, "It's just a scratch."

"I won't tell anyone," The Doctor promised, "I'm good at keeping secrets."

Harry pondered for a moment, and then, knowing that the Doctor would find out one way or the other, held out his hand to show the Doctor the words which were etched into his skin.

The Doctor took Harry's hand with his good one and gazed at the words, before gulping and looking away. Harry noticed that he looked slightly paler.

"Who's detention?"

"I can tell you." Harry replied quietly.

"Who's detention?" The Doctor repeated slightly louder, "I won't tell. You have my word."

Harry gulped, "Umbridge's."

The Doctor nodded, "Was that the one that was taking you when I fell of the ledge?"

Harry nodded.

"I knew she looked like a bad hat!" He Doctor then stated.

There was silence for a moment, then the Doctor said, "Come with me."

He began to walk round the large console in the centre, and then down one of the corridors. Apprehensively, Harry followed. They walked for about two minutes in silence, before the Doctor stopped in front of a door. Opening the door, he and Harry entered to reveal a medical bay. The Doctor walked over to one of the cupboards and pilled out some antiseptic wipes and a bandage.

"Come over here, Harry." The Doctor said kindly.

Harry moved over and sat on the chair the Doctor had indicated for him to take.

The Doctor grumbled and pulled of the sling he was wearing so he could try and use both of his hands, but to Harry it looked painful, and the Doctor get grimacing every few minutes.

"Blimey, this is difficult with one hand." The Doctor stated, trying to open the packet of antiseptic wipes, "Ah well, I guess it was my own fault.

Harry leaned down to help him, knowing that the Doctor had gotten the wipes and bandage for his hand.

"Doctor, you don't have to, I mean, it's just a cut." Harry mumbled.

"It could be more than just a cut, Harry. You never know. That woman could be working for the other side,and there could be a trace or something in that quill which she can use against you." The Doctor explained seriously, "And, not to mention, it is actually quite a bad wound."

Harry hadn't thought about it like that. Maybe the Doctor was right.

" Oh, and you didn't want anyone to see it. If I had my sonic right now, I could have scanned your hand to see if it had any traces from the quill, or I could have tried, but as it is, my sonic is still missing." The Doctor sighed, "If I don't find it, I'll have to make a new one. Ah well, as I've already said, it's my own doing."

"What were you doing on the ledge earlier anyway?" Harry asked as the Doctor began to wrap the bandage round Harry's hand one-handed.

" Well, I told you earlier that I'm a time traveller, didn't I? Normally, Martha and I travel to different time zones and stuff through a vortex. When the TARDIS was flying this time, there was a hole in the vortex and we fell through it and crashed here. Sort of like when you crash into a parrallel world, only slightly different." The Doctor told him, securing the bandage and standing up to lean agaist a nearby cabinet, "The hile was created for a reason, and we wanted to know why. So when Martha and I were looking around the school, we heard teachers talking about an unwanted teacher, that Umbridge woman, and Martha and I went to investigate. That's why I was standing on the ledge. I was trying to find that teacher."

Harry nodded in understanding, "So something to do with Umbridge created that hole in the vortex?"

"Not necessarily, but I think she had something to do with it, and also, if she's torturing students, she's not right in the head."

"So what are you going to do?" Harry asked.

"Well," The Doctor replied, "There's not much we can do yet, but I'm going to try my best to get rid of that woman, now that I know what she's done." He paused and then said, "And do you know what I need Harry?"

Harry shook his head and then looked up into the Doctor's expectant eyes, which were shininng with anticipation.

"I need three students who are brave daring and ready for trouble." The Doctor stated, "Do you know where I can find any?" He added sarcastically.

Harry grinned in reply.