Severus Snape stalked through the dungeons in a flurry of black robes, he was back at the one place he had vowed never to return to: Hogwarts.
He sneered at a pair of passing first years, "Same little snots as always, only this time theres no potter...at least thats something to be grateful about." He muttered to himself.
He held in his hand an anonymous letter he had received a week ago telling him that it was imperative that he return to Hogwarts at once, that he was greatly needed. He looked around at the idiotic students and snorted to himself, "Nope, everything seems to be in order."
Now all he had to do was find out who had sent the letter, and then he could disappear again.