"Thanks." Though he's grateful that two of the items on the list have been found, he frowns to himself as he moves on, trying to think of where to go next. Basilisks are mythical, as far as he knows. Finding parts of one is gonna be hard.

"I wonder if it has to be a basilisk specifically," he says out loud, partly to himself, partly to Crookshanks. "There's a couple reptilian species I know of, but I don't know if their scales could substitute."