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.

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.

Johnny Dixon and Professor Childermass discover a trolley which transports them back to Constantinople in 1453 as the Turks are invading the Byzantine Empire.

Decades ago, Evaristus Sloane invented a baseball-playing robot. It could pitch a fastball at a hundred and ten miles per hour, but it also had big, vacant, blue glass eyes that gave Johnny Dixon's grandpa the willies. Now, fifty years later, in the fifth book of the Johnny Dixon mystery series, Johnny's friend Professor Childermass puts the robot back together. It's only after he puts its chilling eyes back in their sockets that the professor realizes...

Picking up right where The Spell of the Sorcerer's Skull left off, this fourth book in the Johnny Dixon series finds Johnny acting very strangely. He has terrible dreams, he wakes up having sleepwalked, and he is acting mean to his friends Fergie and Professor Childermass. The spirit of the evil Zebulon Windrow has taken over Johnny's body, and soon he is lying in a coma close to death. It is up to the professor and Fergie to save him, but that means...

On a trip to Florida with his father, Johnny Dixon visits a fortune-teller and receives an eerie premonition. Inside the crystal ball, Johnny sees a ghost-white face with long white hair and black eyes like puddles of oil, which screams, "The universe shall be mine!" Back home, Johnny's father falls unconscious, gravely ill in a way the doctors cannot understand. Johnny and his friend Professor Childermass investigate and soon realize that the spirit...

By donating a box full of strange objects, Professor Childermass gets his young friend Johnny Dixon a summer job at the Gudge Museum. Everything seems okay as Johnny mops the floors and dusts the artifacts. That is, until a sinister man named Mattheus Mergal shows up looking for the one item the professor held back to keep safe-a wooden hand carved by the evil wizard Esdrias Blackleash. If Mergal gets the hand, he'll be able to bring back his long-dead...

From the award-winning author of The Face in the Frost comes the story of three brothers who rescue a talking gargoyle from their neighborhood junkyard Michael, David, and Alphonsus Jr. (aka Fonsy) are spending the summer trying to blow up the town dock and playing marathon Monopoly games. On the brink of death-by-boredom, they head to the local dump in search of treasures-such as oil cans that Michael can use to build a submarine. But what they...

Anthony Monday takes a vacation to another world in this mind-blowing mystery from the author of The Lamp from the Warlock's Tomb. Summer is here and Anthony Monday has been asked to join his friend Miss Eells and her brother Emerson on a vacation to northern Canada, where Emerson owns a no-frills cottage on an island. School may be out, but there's still a riddle to be solved: A few years ago, three tourists visiting the cottage disappeared...

Anthony Monday doesn't have many friends, and his home life is a wreck. But he does have Miss Eells, the librarian at the Hoosac Public Library, and he has an adventure waiting for him right around the corner. When Miss Eells gives Anthony a job at the library, he thinks he'll just be dusting shelves and filing books. Instead, he discovers a hidden clue leading to the treasure of eccentric millionaire Alpheus Winterborn. Miss Eells thinks the clues...