(From the publisher):
Professor Childermass has vanished, and the only clues are a manacing jack-o'-lantern and a haunted dollhouse - a miniature replica of the room where the professor's granduncle was murdered. When Johnny takes a tiny skull from the dollhouse, demonic forces are unleashed - and they capture the professor and put Johnny in the path of true evil.
Original title: The Spell of the Sorcerer's Skull
Genre: Fiction→ Children & Young Adult→ Mystery
Fiction→ Children & Young Adult→ Horror