INTRODUCTION
Stanhope, who could blame him? All of the boys are at college, finishing their education, and all are as wideawake as ever, and Tom is just as full of merriment. They have some strenuous times, and take a trip through the air that is a good deal out of the ordinary. They meet some of their old enemies, and prove that they are heroes in the best meaning of that much-abused term.
The publishers report a sale of this series of books of over a million copies! This is truly amazing to me, and again, as in the past, I thank my many young friends for their cordial reception of what I have written for them. I trust the present story will interest them and prove of benefit.
Affectionately and sincerely yours,
Edward Stratemeyer
