Wolf's snapping jaws had already deserted the robber's mangled hand and slashed the man's left shoulder to the bone. Then the dog made another furious lunge for the face. Down crashed the man, losing his balance under the heavy impact; Wolf atop of him. To guard his throat, the man rolled over on his face, kicking madly at the dog, and reaching back for his own hip-pocket. Half in the water and half on the bank, the two rolled and thrashed and struggled--the man panting and wheezing in mortal terror; the dog growling in a hideous, snarling fashion as might a wild animal. The thief's torn left hand found a grip on Wolf's fur-armored throat. He shoved the fiercely writhing dog backward, jammed a pistol against Wolf's head, and pulled the trigger! The dog relaxed his grip and tumbled in a huddled heap on the brink. The man staggered, gasping, to his feet; bleeding, disheveled, his clothes torn and mud-coated. The echoes of the shot were still reverberating among the lakeside hills. Several of the house's dark windows leaped into sudden light--then more windows in another room--and in another. The thief swore roundly. His night's work was ruined. He bent to his skiff and shoved it into the water; then he turned to grope for what he had dropped on the lawn when Wolf's unexpected attack had interfered with his plans. As he did so, something seized him by the ankle. In panic terror the man screamed aloud and jumped into the water, then, peering back, he saw what had happened. Wolf, sprawling and unable to stand, had reached forward from where he lay and had driven his teeth for the last time into his foe. The thief raised his pistol again and fired at the prostrate dog, then he clambered into his boat and rowed off with frantic speed, just as a salvo of barks told that Lad and Bruce had been released from the house; they came charging down the lawn, the Master at their heels. But already the quick oar-beats were growing distant; and the gloom had blotted out any chance of seeing or following the boat. Wolf lay on his side, half in and half out of the water. He could not rise, as was his custom, to meet the Boy, who came running up, close behind the Master and valorously grasping a target rifle; but the dog wagged his tail in feeble greeting, then he looked out over the black lake, and snarled. The bullet had grazed Wolf's scalp and then had passed along the foreleg; scarring and numbing it. No damage had been done that a week's good nursing would not set right. The marks in the grass and the poisoned meat on the porch told their own tale; so did the neat kit of burglar tools and a rubber glove found near the foot of the lawn; and then the telephone was put to work.