I remember reading a short book as a child about an evil wizard and a giant. I don't remember all the details, but I do remember that the story ends with the wizard attempting to turn either the giant or the local town to stone, and his spell his reflected back at him (I think by a mirror owned by the giant?), which turns the wizard to stone instead.
Does anyone know what this story might be? It had a really distinctive art style, if I remember correctly. I think the latest it could've possibly been published would be the late 90's, but I suspect it might be a bit older than that.