CONTENTS
CHAPTER PAGE I. [The Accident] 7 II. [The Lost Girl] 21 III. [Planning the Treasure Hunt] 35 IV. [A Stranger at Green Falls] 47 V. [A Flying Engagement] 57 VI. [The Telegram] 70 VII. [The Widow in Black] 83 VIII. [Amy’s Relatives] 96 IX. [The Take-Off] 104 X. [The Treasure] 116 XI. [The Return of the Flyers] 131 XII. [Trickery] 141 XIII. [The Haunted House] 151 XIV. [Two Surprises for Linda] 160 XV. [The Ghost in the Tower] 169 XVI. [While the House Burned] 184 XVII. [The Rescue] 193 XVIII. [In Quest of the Money] 205 XIX. [A Clew to Follow] 218 XX. [Flying Over the Mountains] 226 XXI. [A Strange Landing] 238