THE HARDY BOYS THE TOWER TREASURE By FRANKLIN W. DIXON AUTHOR OF THE HARDY BOYS: THE HOUSE ON THE CLIFF THE HARDY BOYS: THE SECRET OF THE OLD MILL _ILLUSTRATED BY_ WALTER S. ROGERS NEW YORK GROSSET & DUNLAP PUBLISHERS Made in the United States of America GROSSET & DUNLAP, PUBLISHERS, NEW YORK Copyright, 1927, by GROSSET & DUNLAP [Illustration: "THESE BOYS WANT TO LOOK THROUGH THE OLD TOWER." (Chapter XVII)] CONTENTS I THE SPEED DEMON II THE STOLEN ROADSTER III TRACES OF THE THIEF IV THE HOLD-UP V CHET'S AUTO HORN VI TIRE TRACKS VII THE MANSION ROBBERY VIII THE ARREST IX RED HAIR X AN IMPORTANT DISCOVERY XI MR. HARDY INVESTIGATES XII DAYS OF WAITING XIII IN POOR QUARTERS XIV RED JACKLEY XV THE CHIEF GETS A BOMB XVI A CONFESSION XVII THE SEARCH OF THE TOWER XVIII THE NEW TOWER XIX THE MYSTERY DEEPENS XX THE FLASH IN THE TOWER XXI A NEW IDEA XXII THE SEARCH XXIII ADELIA APPLEGATE'S COMPLIMENT XXIV THE LAST OF THE TOWER CASE _THE HARDY BOYS_ THE TOWER TREASURE CHAPTER I THE SPEED DEMON "After the help we gave dad on that forgery case I guess he'll begin to think we _could_ be detectives when we grow up." "Why shouldn't we? Isn't he one of the most famous detectives in the country? And aren't we his sons? If the profession was good enough for him to follow it should be good enough for us." Two bright-eyed boys on motorcycles were speeding along a shore road in the sunshine of a morning in spring. It was Saturday and they were enjoying a holiday from the Bayport high school. The day was ideal for a motorcycle trip and the lads were combining business with pleasure by going on an errand to a near-by village for their father. The older of the two boys was a tall, dark youth, about sixteen years of age. His name was Frank Hardy. The other boy, his companion on the motorcycle trip, was his brother Joe, a year younger.