As a bloodcurlingly fearsome ghost, Humphrey the Horrible is a failure. He’s not horrible at all. Instead of being ghastly and skeletal, he’s pink and fluffy, like a summer cloud. He longs to be like his brother, who’s a Screaming Skull. Or his father, who has stumps for legs and a sword through his chest. Or even his cousins who are like vampire bats. Poor Humphrey, though, can’t scare anyone....