CHAPTER I Vanished!
CHAPTER II Tragedy’s Aftermath
CHAPTER III The First Clue
CHAPTER IV Benson’s Ally
CHAPTER V The Camouflaged Plane
CHAPTER VI Mac Gums The Works
CHAPTER VII Murder on Wheels
CHAPTER VIII Mike and Ike
CHAPTER IX Smitty Joins Up
CHAPTER X Crime Plans Anew
CHAPTER XI The Trapdoor Plane
CHAPTER XII Smitty Takes the Risk
CHAPTER XIII The Clue
CHAPTER XIV Isle Royale
CHAPTER XV Island Prisoners
CHAPTER XVI Quick-Change Artist
CHAPTER XVII Sleet Of Death
CHAPTER XVIII The Big Shot
CHAPTER XIX Three Against Crime
