. A MILE BENEATH THE SURFACE 40

VII. CORNWALL TO THE RESCUE 48

VIII. IN THE NEW SHAFT 56

IX. WINNING A FRIEND BY SHEER PLUCK 65

X. HEROISM REWARDED 73

XI. NELLY TREFETHEN FINDS A LETTER 81

XII. A VISION OF THE CLIFFS 89

XIII. LOG-WRECKERS AND SMUGGLERS 95

XIV. A VAIN EFFORT TO RECOVER STOLEN PROPERTY 102

XV. PEVERIL IN THE HANDS OF HIS ENEMIES 110

XVI. LOST IN A PREHISTORIC MINE 118

XVII. UNDERGROUND WANDERINGS 125

XVIII. FROM ONE TRAP INTO ANOTHER 133

XIX. "DARRELL'S FOLLY" AND ITS OWNER 141

XX. PEVERIL IS TAKEN FOR A GHOST 148

XXI. MIKE CONNELL TO THE RESCUE 156

XXII. THE SIGNAL IS CHANGED 164

XXIII. A BATTLE WITH SMUGGLERS 172

XXIV. CONNELL MAKES GOOD HIS ESCAPE 180

XXV. A SEA FIGHT ON LAKE SUPERIOR 188

XXVI. FIRST NEWS OF THE COPPER PRINCESS 196

XXVII. A NIGHT WITH A MADMAN 205

XXVIII. LEFT IN SOLE POSSESSION 213

XXIX. A ROYAL NAME FOR A ROYAL MINE 221

XXX. PEVERIL ACQUIRES AN UNSHARED INTEREST 230

ILLUSTRATIONS

ON THE FACE OF THE CLIFF STOOD A GIRLISH FIGURE _Frontispiece_

"IN BREATHLESS SILENCE THE GROUP WATCHED PEVERIL'S
MOVEMENTS" _Facing p._ 12

PEVERIL GOES TO WORK " 36

THE CAR-PUSHERS MADE A FURIOUS ATTACK ON PEVERIL " 46

PEVERIL LEAPED DOWN AMONG THE SPUTTERING FUSES " 66

THE MEN HASTILY THREW PEVERIL HEAD-FIRST INTO
THE BUSHES " 106

PEVERIL SAT BESIDE THE