I've been living off rats mostly. Can't steal too much food from Hogsmeade; I'd draw attention to myself."
He grinned up at Harry, but Harry returned the grin only reluctantly.
"What're you doing here, Sirius?" he said,
"Fulfilling my duty as godfather," said Sirius, gnawing on the chicken bone in a very dog-like way. "Don't worry about me, I'm pretending to be a loveable stray."
He was still grinning, but seeing the anxiety in Harry's face, said more seriously, "I want to be on the spot. Your last letter... well, let's just say things are getting fishier.