| FACING PAGE |
| “The Gray Master.” | [Frontispiece] |
| “Last Bull, standing solitary and morose on a little knoll in his pasture.” | [6] |
| “Only to be hurled back again with a vigor that brought him to his knees.” | [10] |
| “When the grizzly saw her, his wicked little dark eyes glowed suddenly red.” | [32] |
| “Almost over his head, on a limb not six feet distant, crouched, ready to spring, the biggest puma he had ever seen.” | [64] |
| “He reached the tree just in time to swing well up among the branches.” | [72] |
| “For perhaps thirty or forty yards the bull was able to keep up this almost incredible pace.” | [90] |
| “Then the second puma pounced.” | [134] |
| “He launched himself on a long, splendid sweep over the gulf.” | [144] |
| “After this the eagle came regularly every three or four hours with food for the prisoner.” | [160] |
| “And the writhing tentacles composed themselves once more to stillness upon the bottom, awaiting the next careless passer-by.” | [176] |
| “Without the slightest hesitation he whipped up two writhing tentacles and seized him.” | [188] |