Johnny Dixon and Professor Childermass series

Living with his grandparents gives Johnny Dixon a lot of time to find trouble. Or adventure. Or is it both? In this, the first Johnny Dixon mystery, our young hero hears the spine tingling story of Father Baart, a madman who haunts the town's church. At first, Johnny does not believe in ghosts, but when he takes a scroll and a small Egyptian figurine from the church basement, all that changes. Soon, a mysterious stranger gives him a ring, and...

When Johnny Dixon takes a tiny skull from a haunted dollhouse, demonic forces are released, capturing Professor Childermass and leading Johnny on a harrowing chase to a deserted island off the coast of Maine.

Fifty years after its invention Johnny's friend Professor Childermass puts back together the world's first baseball-playing robot, only to discover that he has reawakened an evil killing machine.

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.

When Dr. Charles Coote--a noted folklorist and old friend of Professor Childermass--returns from a conference in New Orleans, he brings home a small, sinister drum. It's made entirely of black wood with red leather straps and small, white bones. Nobody takes Dr. Coote's worries about the drum very seriously, until Fergie taps it a few times and releases an unspeakable evil. Suddenly, Johnny and Fergie and the professor find themselves battling the...

When Fergie falls under the spell of an evil sorcerer, Johnny Dixon and Professor Childermass risk their own lives to save him.