My Dear Boys: This volume is a complete story in itself, but forms the seventeenth in a line issued under the general title of "The Rover Boys Series for Young Americans."
       As I have mentioned several times, in other volumes, this line was started with the publication of "The Rover Boys at School," "On the Ocean" and "In the Jungle." The cordial reception afforded the stories called for the publication of the next volume, "The Rover Boys Out West," and then, year after year, by the issuing of "On the Great Lakes," "In Camp," "On Land and Sea," "On the River," "On the Plains," "In Southern Waters," "On the Farm," "On Treasure Isle," "At College," "Down East," and then by "In the Air," where we last met them.
       The boys are not as young as they once were-- indeed, in this book, Dick, the oldest, gets married and settles down to business. But all are as bright and lively as ever, and Tom is just as full of fun. When they go to New York City they have some strenuous times, and all prove their worth in more ways than one. Their father is in deep trouble and they aid him, and clear up quite a mystery.
       Up to this writing, the sale on this line of books is but a trifle short of one million and a quarter copies! This is to me, of course, tremendously gratifying. Again, as in the past, I thank my many readers for their interest in what I have written for them; and I trust the perusal of my works will do them good.
       Affectionately and sincerely yours,
       

Arthur M. Winfield.

Introduction
Chapter I. The Boys at Brill
Chapter II. About the Past
Chapter III. A Useless Hunt
Chapter IV. The End of the "Dartaway"
Chapter V. Two Visitors
Chapter VI. The Missing Biplane
Chapter VII. The Sale of the Biplane
Chapter VIII. A Box of Candy
Chapter IX. A Breakdown on the Road
Chapter X. Startling News
Chapter XI. At the Farm
Chapter XII. Off for New York
Chapter XIII. At the Outlook Hotel
Chapter XIV. Dick Makes a Discovery
Chapter XV. At the Brokers' Office
Chapter XVI. More Discoveries
Chapter XVII. An Important Telephone Message
Chapter XVIII. On the Hudson River
Chapter XIX. The Search for the Schooner
Chapter XX. A Minute Too Late
Chapter XXI. Captain Rodney's Testimony
Chapter XXII. Hot on the Trail
Chapter XXIII. The Rescue
Chapter XXIV. From a Garret Window
Chapter XXV. What Happened to Tom
Chapter XXVI. Dick Takes the Reins
Chapter XXVII. Dan Baxter Gives Aid
Chapter XXVIII. The Capture
Chapter XXIX. Brought to Terms
Chapter XXX. Mrs. Dick Rover--Conclusion