Book 15


Book 32

Mystery of the Blazing Cliffs

by M.V. Carey

Published 13 August 1984

Book 38


Book 39


Three young detectives travel abroad to solve a mystery involving a silver spider and a political plot that endangers the life of a young prince.

Three young detectives undertake a case involving an Egyptian mummy that whispers, but only to one man.


Mystery of Monster Mountain

by M.V. Carey

Published September 1974
The three young sleuths solve a case of double identity while investigating the legend of Monster Mountain.


Mystery of the Green Ghost

by Robert Arthur

Published 1 October 1965






The three investigators take on two mysteries: the disappearance of an ancient jeweled Japanese belt from a museum exhibit and the strange antics of a group of gnomes around an elderly woman's house.