CONTENTS

CHAPTERPAGE
I.[Disappointment]1
II.[Hint of a Mystery]11
III.[When the Wheel Came Off]18
IV.[“We’ll Stop It!”]27
V.[Last Days at Boxwood]36
VI.[Off for the West]47
VII.[The Stowaway]55
VIII.[A Breakdown]63
IX.[The Cattle Buyer]72
X.[A Midnight Alarm]81
XI.[At Square Z Ranch]89
XII.[Explanations]95
XIII.[A Sensation]102
XIV.[An Old Acquaintance]111
XV.[Out of the Air]118
XVI.[The Wrong Pony]127
XVII.[Another Raid]135
XVIII.[Two Invalids]142
XIX.[Another Attempt]151
XX.[The Professor’s Dilemma]158
XXI.[Queer Marks]167
XXII.[Anxious Days]174
XXIII.[Letters from Home]180
XXIV.[Questions]188
XXV.[Their Last Chance]197
XXVI.[Seen from Above]203
XXVII.[The Lone Figure]210
XXVIII.[The Secret Passage]217
XXIX.[The Round-Up]223
XXX.[A Final Surprise]234