CONTENTS

CHAPTER
I. [THE TRAIL OF THE HAUNTED MESA]
II. [THE SAND STORM]
III. [A NIGHT ALARM]
IV. [SOME QUEER TRACKS]
V. [THE HOLLOW ALTAR]
VI. [THE LEGEND OF A FORGOTTEN RACE]
VII. [WHAT CAME ACROSS THE DESERT]
VIII. [THE DARK FACE OF DANGER]
IX. [IN THE MESA DWELLERS' BURIAL GROUND]
X. [A NEW MEXICAN STYX]
XI. [THE CAMP OF THE GUN-RUNNERS]
XII. [MADERO'S FLYING COLUMN]
XIII. [IN THE CAMP OF THE INSURRECTOS]
XIV. ["DEATH TO THE GRINGOES!"]
XV. [A RACE FOR LIFE]
XVI. [WHAT HAPPENED TO COYOTE PETE]
XVII. [BOB HARDING DOES "THE DECENT THING"]
XVIII. [THE TABLES TURNED]
XIX. [BUCK BRADLEY'S AUTOMOBILE]
XX. [AT THE ESMERALDA MINE]
XXI. [AN ACT OF TREACHERY]
XXII. [AT ROSARIO STATION]
XXIII. [JACK MERRILL'S "SPECIAL"]
XXIV. [THE ATTACK ON THE MINE]
XXV. [THE LAST STAND.—CONCLUSION]

ILLUSTRATIONS

[ "Right off there! Look! Look!" The lanky cow puncher pointed out
beyond the shadow of the solitary mesa . . . . . . Frontispiece ]

[ As it flared up, all three recoiled with expressions of dismay.
At their very feet was a deep chasm. ]

[ A tempest of lead rattled about the engine. Almost before they
realized it, they had swung around the curve. ]

The Border Boys Across the Frontier.

CHAPTER I.

THE TRAIL OF THE HAUNTED MESA.