Because Johnny is a young person beset by problems—primarily those created by cruel schoolmates—the novel provides insight into the anxieties, real and imagined, of such a young, sensitive person. Children can identify with his difficulties, and parents can understand them. The fact that Father Baart, as a Catholic priest, apparently consorted with evil spirits could cause some difficulties for readers of that faith. However, Father Baart returns only as a ghost and most readers would probably acknowledge that an occasional priest strays from his original vocation.

Otherwise, the story is uplifting and moralistic. Johnny derives momentary pleasure in using the power of the blue figurine against his tormenter, Eddie Tompke. But as soon as the figurine causes real harm, Johnny feels sorry for wanting revenge, a reaction that humanizes Johnny in the reader's eyes. In addition, the determination and courage he shows...