Chessmen of Doom

In a thrilling adventure, a young sleuth and his professor friend are challenged to solve a riddle and win a fortune.

Professor Roderick Childermass may be the strangest person Johnny Dixon has ever met, but compared to his brother Peregrine, the professor is practically normal. Peregrine is a born trickster, and when he knows his death is near, he sends a letter promising the professor his entire ...