More of a regressive-transfiguration type of spell than anything resembling a cure for lycanthropy, perhaps using an under-the-surface magical signature of the person to reveal the wolf's identity.

Yeah, this is about where I was going. Chalk up the rest to Lockhart's imagination, his emphasis on the "saved the village from attack" rather than "killed the werewolf".

Creevy -- he had grapes with him, he must have been on his way to Harry's feet.

Is there some significance of grapes that I'm missing?

Thank you!

Don't thank me, just keep making great art. :*