CONTENTS

CHAPTER
I. [ACCEPTING A CHALLENGE]
II. [THE STRANGE ACTIONS OF DOMINO]
III. [OLD HANK COOMBS BEARS A MESSAGE]
IV. [A NOTE OF WARNING AT THE SPRING HOLE]
V. [THE VOICE OF THE MOUNTAIN]
VI. [A SECOND ALARM]
VII. [THE "RUSTLERS"]
VIII. [A STARTLING DISCOVERY]
IX. [WHAT HAPPENED TO PEG]
X. [THREATS OF TROUBLE]
XI. [THE BLACK NIGHT]
XII. [LOSING THEIR BEARINGS]
XIII. [THE SMOKE TRAIL]
XIV. [A CALL FOR HELP]
XV. [SPANISH JOE DROPS A HINT]
XVI. [THE VENT HOLE IN THE WALL]
XVII. [FRANK HOLDS THE HOT STICK]
XVIII. [A GUESS THAT HITS THE BULLSEYE]
XIX. [THE WORKING OF THE GOLD LODE]
XX. [TRAPPED IN THE CANYON]
XXI. [A CLOSE CALL]
XXII. [ONCE MORE AT CIRCLE RANCH—CONCLUSION]