A boy goes to live with his magician uncle in a mansion that has a clock hidden in the walls which is ticking off the minutes until doomsday.

While thirteen-year-old Johnny Dixon lies dying, possessed by an evil spirit, his friends, an elderly professor and a schoolmate, try to find some way to free him.

Johnny Dixon and Professor Childermass are visiting a New Hampshire inn, and inside that inn is a clock. It s called the Childermass Clock. Inside the clock there is a tiny dollhouse room, an exact replica of the professor s childhood home. And on one of the shelves in that tiny room is a tiny skull. Inside that skull is something evil. In this third Johnny Dixon mystery, Johnny takes the skull to try to solve the murder of the professor s granduncle,...

Johnny Dixon, Fergie and Professor Childermass comply with a strange will left by the Professor's brother, which requires them to spend the summer at a desolate estate where they encounter a madman bent on destroying the world.

After stumbling upon a clue in the public library, Anthony searches for the treasure long rumored to have been hidden by a wealthy, eccentric citizen of their small town.

While spending the summer in an old house on a desolate Canadian island, Anthony Monday and Miss Eells discover a chest that can transport them to another world and a maniacal group who are plotting the destruction of people on Earth.

A painfully overweight sixth grade boy receives a magic amulet which brings him luck, but also terrifying side effects.

Rose Rita Pottinger and Mrs. Zimmermann are transported back to 1828 to save the Weiss family from being destroyed by a wicked wizard.

Lewis Barnavelt tries to avert disaster when the destruction of an old bridge threatens to release a diabolical force, the legacy of a long-dead evil magician.