It was a perfectly deserted street until you decided to get noisy, leave him alone! But anyway, the sudden paper ball came as more than a small surprise, making him look around him looking rather alarmed.

"Biyomon, did you throw this?"

"Wasn't me."

Harry frowned and picked up the paper, unraveling it. The contents... Just further confused and rather scared him. There was no way that was something from the Ministry of Magic, that wasn't even written in the same ink they used, for one, and the language just cemented it as a prank of some sort. But it still raised some big issues.

1- Someone there knew who he was.

2- Someone there knew he wasn't supposed to be doing magic out of school.

3- Someone there had at least some knowledge of the wizard world to bring up Azkaban.

He paused for a few moments, trying to figure out who it could be from. His first thoughts went to either Fred or George Weasley, if not both twins; this would be something they'd do, at least. But the way it was written didn't seem like them...

"Biyomon, could you please go up and..."

"See if I find someone? Got it."

And up Biyomon went, flying high trying to find the culprit.