Mr. Mason is here at his best. While working out very deftly an extremely intricate and clever plot, he gives us excellent characterization and a remarkably vivid series of glimpses into different settings and phases of life. Colonel John Strickland, wandering the earth in a vain attempt to forget his apparently hopeless passion for a famous young society beauty, visits Burma, where he buys a precious ruby for his lady and is induced to go tiger-hunting. He encounters "no other tiger," however, except a ruffianly man, "like a Greek god gone wrong," who makes a moment's mysterious appearance in the jungle. The jewel and the man are but two of many seemingly disconnected links that are forged into a chain of mystery that steadily tightens its hold upon the reader until the brilliant climax is reached. It is questionable whether Mr. Mason is to be praised more highly for his ingenuity or for his unforgettable word pictures.