It was only a little after one o'clock when Mary V, holding Jake down to a walk, nervously passed the empty corral at Sinkhole Camp. She paused awhile in the shadows, wondering what she had better do next. After all, it would be awkward to investigate the interior of the little cabin that squatted there so silently under the moon. She hesitated to dismount. Frankly, Mary V felt much safer with a fleet horse under her, and she was afraid that she might not be so lucky next time in mounting. So she began to reconnoiter warily on horseback. She rode up to the window of the little shed, and saw that it was empty. She rode inside the corral and made a complete circuit of the fence, and saw nothing whatever of Johnny's saddle and bridle. They would be somewhere around, surely, if he were here. She avoided the cabin, but rode down to the pasture in the creek bottom where Johnny's extra horse would be feeding. The horse was there, and came trotting lonesomely up to the fence when he saw Jake. But there was only the one horse, which seemed to prove that the other horse was with the saddle and bridle--wherever they were. Mary V returned to the corral, still keeping far enough away from the cabin to hide the sound of Jake's hoof beats from any one within. She tied the horse to a corral post and went on foot to the cabin. She carried her six-shooter in her hand, and she carried in her throat a nervous fluttering. First she sidled up to a window and listened, then peered in. She could see nothing, for the moon had slid over toward the west, and the room was a blur of shade. But it was also silent, depressingly silent. She crept around to the door, and found that it was fastened on the outside. That heartened her a little. She undid the rawhide string and pushed the door open a little way. Nothing happened. She pushed it a little farther, listened, grew bolder--yet frightened with a new fear--and stepped inside. It was very quiet. It was so quiet that Mary V held her breath and was tempted to turn and run away. She waited for a minute, her nostrils widened to the pent odor of stale cigarette smoke that clings to a bachelor's cabin in warm weather. She tiptoed across the room to where Johnny's cot stood and timidly passed her hands above the covers. Emboldened by its flat emptiness, Mary V turned and felt along the window ledge where she had seen that Johnny kept his matches, found the box, and lighted a match. The flare showed her the empty room. Oddly, she stared at the telephone as though she expected it to reveal something. Some one had stood there and had talked with her. And Johnny was not at camp at all; had not been, since--