Professor Peter Hajek has written the definitive modern treatise on puzzle boxes.
Mr. X the Phantom Thief is back, with a new evil plan! He wants to steal the shining light fr...
Pierre the Maze Detective has a new case. Mr X has stolen the Maze Stone, which has the power...
A new adventure for Pierre and Carmen, taking them to the mysterious and visually stunning c...
A bonanza of 93 stimulating brain teasers curated by puzzle icon Martin Gardner.
A witty riff on the classic whodunit that brings out everyone's inner detective.