The Mystery of the Four Fingers by Fred M. White

A fabulously rich gold mine in Mexico is known by the picturesque and mysterious name of The Four Fingers. It originally belonged to an Aztec tribe, and its location is known to one surviving descendant--a man possessing wonderful occult power. Should any person unlawfully discover its whereabouts, four of his fingers are mysteriously removed, and one by one returned to him. The appearance of the final fourth betokens his swift and violent death.

Surprises, strange and startling, are concealed in every chapter of this completely engrossing detective story. The horrible fascination of the tragedy holds one in rapt attention to the end. And through it runs the thread of a curious love story.