GROSSET & DUNLAP
PUBLISHERS


Copyright, 1915,
By Little, Brown and Company.




CONTENTS


CHAPTER

I SANFORD QUEST, CRIMINOLOGIST
II THE APARTMENT-HOUSE MYSTERY
III THE HIDDEN HANDS
IV THE POCKET WIRELESS
V AN OLD GRUDGE
VI ON THE RACK
VII THE UNSEEN TERROR
VIII THE HOUSE OF MYSTERY
IX THE INHERITED SIN
X LOST IN LONDON
XI THE SHIP OF HORROR
XII A DESERT VENGEANCE
XIII 'NEATH IRON WHEELS
XIV TONGUES OF FLAME
XV "A BOLT FROM THE BLUE"