CHAPTER I The Braggart
CHAPTER II Roy’s Instructions
CHAPTER III Under Observation
CHAPTER IV The Thunderstorm
CHAPTER V Forced Down
CHAPTER VI A Night of Thrills
CHAPTER VII The Serpent in the Bus
CHAPTER VIII At Kibana Aerodrome
CHAPTER IX Plague
CHAPTER X Professor Johann Spiekelwald
CHAPTER XI The Failure
CHAPTER XII Hurlingham’s Resolve
CHAPTER XIII The Treasure is Found
CHAPTER XIV Crashed!
CHAPTER XV To the Rescue
CHAPTER XVI Trapped
CHAPTER XVII Reward
