It doesn't take much really to make a friend. A quick hello in the hallway. An offer of help when someone sighs in annoyance. But the old Harry would have been totally unprepared for the amount of defence he would receive from the Snakes whom he had fought against since his first year. Although admittedly all the fights had been started by them, it didn't really matter. He'd managed to avoid the struggle by striding out of the staff entrance with Draco by his side who he guessed was trying to work out what had changed in him. Really Malfoy was so predictable.
"I'll explain in the dorms, Draco, don't strain your brain as you won't figure it out!"
Arriving at the entrance of Slytherin, Draco only just realised that he didn't have the new password and was about to say so when Harry began.
"Oh mighty Slytherin, greatest of the Hogwarts Four let me and my companion enter your domain!"
"Oh and who might you be? Presumptuous little twerp."
"You only see me as I appear, you do not know what I hide or who I am but for my purpose here this is who I must be."
"Fair enough, come talk to me and I'll discover your plans"
The door swung open revealing a double room cloaked in darkness. A quick Lumos and Draco saw that the beds were draped in silk sheets and the mahogany wardrobes and desks almost seemed to blend into the Slytherin green walls. On the far side of the room, however, was one of the most amazing things he had ever seen. Reams and Reams of books, more than what could be found in Hogwarts Library and Malfoy library put together and not only that but half of them were books of dubious content. A glance at Potter showed that he was not only aware of the books presence but was at this very moment glancing down in the pages of one book.
"Well, never thought you would be one into the dark arts, Potter."
"Too bad then, Draco that this is actually the potions diary of one Salazar Slytherin," Potter replied with a smirk. "Though that book you keep glancing at is rather interesting to read and try out!"
Draco just looked at Potter shocked before grabbing the book and beginning to read, all the while preparing a letter to his father in his mind.