"It would be a vampire." Of course it would. With Millicent gone they've become an outright menace, as opposed to the general menace that Sirius thought of them before.

"I suppose I can take a look around for you, with that description. He's probably got your scent on him as well."

Although he'll have to be sneaky about it, sincerely this time. Not his usual brand of sneaky that typically winds up with him in trouble.