The Chessmen of Doom

Upon Peregrine's death, his brother Professor Roderick Childermass receives this very strange riddle along with the terms of Peregrine's will: The professor must spend the summer on Peregrine's estate or forfeit his huge inheritance, And Peregrine, who dabbled in sorcery, left no doubt that danger lay ahead. But the professor and his young friends Johnny and Fergie, ignoring the risk, journey to the desolate mansion. There they battle a madman who is determined to let nothing -- and no one -- stop him from destroying the world.
"Unusual symbols, missing chessmen, a strange man with stranger powers, and comets flashing through the sky provide the reader with a fast-paced, exciting story." - Voice of Youth Advocates

About the Book

This is the seventh book in the Johnny Dixon series.

Jan Oort
Where do comets come from? Dutch astronomer Jan Oort attempted to answer that question with his Oort Cloud theory.

Johnny finds an Assyrian winged bull amongst the treasures of the British Museum.

Professor Childermass undergoes hypnosis to recall the name of a 10th Century czar from Bulgaria.

Treaty of Westphalia
The Treaty of Westphalia was the collective name of a series of agreements that ended the Thirty Years' War (1618–48) in the Holy Roman Empire.


Johnny Dixon
Byron "Fergie" Ferguson
Roderick Childermass
Charles Coote
Mrs. Anna Louisa Thripp


Edmund Stallybrass


Duston Heights, Massachussets
Stone Arabia, Maine


Ivory chessmen
Warped chessboard
Flaring sun medalion
Book of spells with leather cover
Long wooden pointer with silver star
Costume jewelry pin