He didn't mean to find it and it wasn't his fault it was there and really you couldn't blame him because the entire house was made of wood and wood naturally had holes and he didn't build the damned house and technically if he hadn't found it, someone else surely would have and what were the odds that she was in the next room anyway? And mostly all of that was right. For instance, he did not mean to find it. But he had anyway.

Draco Malfoy returns to Hogwarts as Potions Master to find the ghost of Hermione Granger floating through the halls. Oneshot. Dramione

Hermione felt the pounding in her ears again. She would see him for the first time since the Great Hall, gaunt and stricken at the Slytherin table with his mother clutching his arm. She hadn't meant to look for him. Not in the corridors, not beneath the white sheets of the fallen, not on the way to the Chamber of Secrets with Ron, but she was a stupid girl.