CHAPTER I.
WE SIGHT A BOAT 9
CHAPTER II.
THE BOAT'S CREW 27
CHAPTER III.
THE MYSTERY SOLVED 41
CHAPTER IV.
MARTIN LUTHER'S STORY 56
CHAPTER V.
A BREAK-DOWN 72
CHAPTER VI.
ON THE ISLAND 86
CHAPTER VII.
ERRORS EXCEPTED 100
CHAPTER VIII.
HOT WORK 113
