AN: Thank you Mystical Witch, I have wanted to do a cross over ever since the 9th Doctor, Chris Eccleston but never had the courage to write the Doctor. But in recent weeks its been praying on my mind so here it is, the second chapter.

Synopsis: As soon as the Doctor realises there is something wrong he takes no time in making some high friends in high places as well as some enemies….

'I suggest you remove that monstrosity from my tea table at once,' roared Slughorn who looked furiously at the Doctor who was looking around the room thoughtfully. Rose jumped and quickly retreated of the table before the whole thing collapsed under the weight of the Tardis and the Doctor stumbled less than gracefully.

'Well, funny place you've got, would've expected something a bit more up market especially for you Slugger, I never penned you as the tea party type back in the old days,' the Doctor said reminiscently as he dusted of his pine striped jacket. Slughorn eyed him cautiously and quickly drew his wand out. Rose's eyes widened at first in fear then she began to laugh.

'Ohhh, we're really scared,' she laughed 'what you gonna do poke us to death, he's the Doctor, I doubt a toy wand could do him any harm,'

The Doctor rolled his eyes and gave Rose a stern almost patronising look before he laughed himself.

'She has a point ole Slugger, you were never very effective wit that thing….potions was your forte right, or am I mistaken as I have been once already today,' and the Doctor beamed round at the all with his hands tucked roughly in his jacket pockets.

'Why is it even when you screw up,' Rose asked 'that you automatically know at least one or more persons in the period we just happen to visit?'

'I've been around the block a fair few times, I know my way around the cosmos just a little bit-'

'Surely you are not the Doctor; for one thing you are missing your scarf!' Slughorn said, his party watched bemusedly and hung awkwardly around the room as Slughorn still had not lowered his wand.

'Surely you of all people Slugger, would recall my regeneration,' the Doctor paused and looked cautiously down at Slughorns outstretched wand 'or it could be possible that you don't remember,'

'You're not the Doctor-'

'Of course he is,' Rose said defiantly 'he is the Doctor,'

'Come now Slugger, don't you remember last time we met Sarah Jane was in two minds whether or not to come with me-'

'Sarah- Jane,' Slughorn muttered numbly 'you can't possibly know that unless-'

'Unless,' the Doctor finished grinning broadly and he bowed slightly 'I am the Doctor, now where do we go for a drink these days,' he added cheerily. And Slughorn lowered his wand, although still slightly anxious he shook the Doctors hand and the atmosphere in the tea room seemed to relax immensely.

Harry arrived back at Hogwarts sharply and trooped up the stairs to the fourth floor where he was greeted by a small group of sixth year girls. They looked anxious and worried as Harry approached, the tallest one strode forward briskly but her face fell as she noticed Professor Potter was still lumbered with the papers from that morning when she had talked with him.

'Professor-'

'Not now Abigail, I haven't marked them so please tell Marisa and the others to come back tomorrow,' Harry said sighing, and fumbling in his pocket for his wand.

'Professor, it's been over a week. Is everything alright, you haven't seemed yourself lately,' Abigail said concerned

'I am fine Abigail, just a little under the weather now please; tell the others to move away from my door so I can actually get into my office,'

Abigail shot a warning look at the other girls who instantly moved away from the door and drifted on down the corridor. Abigail looked back at Harry as she caught up with her friends and she found that, now knowing what she knew, felt an upsurge of affection towards her DADA professor. He quickly unlocked his office door and made his way inside.

AN: Now I never watched the old Doctor Who, my dad use to but I only know of Sarah Jane because of this weeks new episode. I hope you guys liked this instalment. It will become more intertwined with Hogwarts in a few chapters. Don't own a thing. Please read and review. If yu love DoctorWho please appreciate that I am very new to this and I apologise deeply if I have murdered the Doctor in these fics or you think its an outrage that Harry and the Doctor should ever mix.