(...)"INTRODUCTION
MY DEAR BOYS: This is a complete story in itself, but forms the fifteenth volume of the "Rover Boys Series for Young Americans."
Twelve years ago the line was started with the publication of the first three stories, "The Rover Boys at School," "On the Ocean," and "In the Jungle." I earnestly hoped that the young people would like the tales, but never did I anticipate the tremendously enthusiastic welcome ^jyhich was given to the volumes from the start, ^jior the steady(...)".