Disclaimer: I do not own the Harry Potter series or Doctor Who.

The Time Traveling Professor

Chapter 1 My Imaginary Friend

I was 10 when I first met him. My imaginary friend with his magic blue box. My parents had not woken when I heard the whooshing sound from outside my house. I gave a gasp when a man dressed in a suit and tie paired with a trench coat walked out of the blue police box.

"Hello there. I'm the Doctor. What's your name?" he asked.

Of course I have always been told never to speak to strangers, but there was something different about this man.

"Hermione Jean Granger," I told him.

"Well, Miss Granger, might I ask the date?" he asked.

I thought he was joking at first, but the look on his face was serious.

"September 19, 1989. It's my birthday," I told him.

He gave me a huge smile, showing white teeth.

"Really? We'll happy birthday, Hermione," the Doctor replied.

"Your name's really the Doctor?" I asked.

He did not look like the question had surprised him. Like he had been asked that a million times before.

"Yeah," the Doctor answered.

"Doctor who?" I asked. He gave me an even bigger smile if that was possible. My eyes wondered to the blue box behind him. "Then why does that say Police Box if you're a doctor?"

"It's my traveling machine," the Doctor told me. "The TARDIS. Time and Relative Dimension in Space."

"Can you take me with you?" I asked.

His eyes fell to the ground.

"Well…"

"It's just the other kids as school make fun of me because I'm different," I told him a little too fast.

"You can do things others can't, am I right?" the Doctor asked. I nodded. "I can't take you with me. Your life is about to change in ways you couldn't imagine."

He then he turned and started for the TARDIS.

"Will I be seeing you again?" I asked.

He turned back around, placing a hand on the door of his machine.

"Oh, I'm sure you will sometime," the Doctor replied with a smile.

And then he got in his blue box and was gone as quickly as he came. That was the last time I saw him for many years. He was right. Almost two months later I received a letter from Hogwarts School of Witchcraft and Wizardry. I was a witch. I had magic. I would meet two lifelong friends there. Ron Weasley and Harry Potter.

It was the beginning of 6th year when I saw the Doctor again. He was to be the new Defense Against the Dark Arts professor. I confronted him at the end of class the first day.

"It's you, isn't it?" I asked. "I wasn't just dreaming all those years ago?"

"Hello, Hermione," he said with a big smile.

"Doctor," I replied.

My arms found their way around his neck. If this was another dream, I was not going to let it go that easily again.

"Hermione, we need to…" Ron started to say.

I quickly let go of the Doctor and turned to meet Ron's confused eyes, Harry behind him.

"Ron… Harry, this is the Doctor," I said.

"The Doctor? The one you made me dress up as when we were kids?" Ron asked.

I did not look at the Doctor to see his reaction.

"Me as a ginger? If only," he said with a laugh, which made me feel less embarrassed.

"So, why are you here?" Harry asked.

I knew it was a matter of time before that question would be asked.

"Don't know, really. Well, I do. Well, when I say I do… I mean… oh, no matter. I'm here, aren't I?" the Doctor asked.

"Yes, you are," I replied, and I cannot help but have a smile on my face.

"I don't know about you, but I'm starving," Ron said. "We'll meet you in the Great Hall."

He and Harry walked out. When I turned back to face the Doctor, I could tell something was not right.

"Doctor, what's the matter?" I asked.

"What year of schooling is this for you?" he wondered.

I gave him a curious look. It was like when he asked me for the date the first time we met.

"Sixth. You should know that," I told him.

"Just making sure," the Doctor replied.

And then I realized something.

"You know what' going to happen, don't you?" I asked.

I had my answer as soon our eyes met. He knew. And for the first time, I was scared of him. He knew the future, but he would not tell me.

"Just trust me. Can you do that?" the Doctor asked.

"Yes," I told him with a nod.

"Then trust me when I say everything's going to be all right," the Doctor replied.

I walked out without saying anything else to him.

"I don't trust him," Ron said a while after I had arrived in the Great Hall to eat.

"Of course you don't," I replied, not bothering to even look at him.

"Ron's got a point," Harry said.

I gave a frustrated sigh.

"Not you, too," I said.

"I'm serious, Hermione," Harry told me. I finally looked at him. "What if he's just trying to get on your good side?"

I rolled my eyes at this accusation.

"Now I really don't like him," Ron replied.

"Oh, please," I said a loudly.

"It's just with Vol..." Harry began to say before Ron gasped.

"Don't say his name," Ron replied.

Harry and I shared a look and eye roll.

"… back, we have to keep an eye out," Harry finished.

I gave up arguing with them and eat my lunch.

xxx

The Doctor knew I was having a bad day the moment I walked into the class a couple of months later. I had caught Ron and Lavender Brown snogging.

"Do you want to talk about it?" the Doctor asked.

"You know? Of course you do," I replied with a sigh.

"If I could say or do…" the Doctor to say before he stopped as I looked up at him.

"Yeah, well you can't, can you?" I asked angrily. "I can't see my own future"

"Well…"

"You wouldn't," I replied.

"I could," the Doctor told me.

"Why?" I asked.

He took a step closer.

"Think of what would happen of you knew what would happen to you," he said.

"I am, and I don't like it," I replied, giving him a stern look. "No one should have that kind of knowledge."

He laughed, which made me frustrated.

"Says the girl who had a time-turner," he said.

My eyes grew. He seemed to know everything about me.

"That was different," I told him defensively.

"Is it really?" the Doctor asked. I cleared my throat. "Let me show you something."

He extended his hand for me to take it. I took it without realizing I had. We walked up the stairs and entered his office. And there it was. His big blue box.

"Your TARDIS," I said.

"Come inside," he told me. "We don't have to go anywhere. I just want you to see it."

"Really? I can go in there?" I asked.

"Yeah," the Doctor replied with a smile.

"All right. But just to look inside. Nothing else," I said.

He crossed both sides of his chests.

"I cross my hearts," the Doctor replied. My eyes grew. "Oh yeah. I should have mentioned that."

"Why am I not surprised?" I asked.

"After you," he said.

I took a deep breath as I began to step in. What was I getting myself into?