An experienced black cat stalking a nervous bird could be no more quiet than was the Lone Ranger as he moved across the Basin. His clothing had no flapping superfluities; he wore no jingling spurs; his guns were tied down so that the holsters could not slap his legs. Boots oiled to preclude the slightest possibility of any squeaking leather, he moved swiftly and surely toward the buildings of the ranch. He saw the house and, not far from it, the row of lighted squares that marked the bunkhouse.

Halfway to the buildings, the Lone Ranger froze. He wondered if his eyes were playing tricks, or if he actually had seen someone, or something, move at one end of the bunkhouse. Now he saw a moving figure in the beam of light that slanted from a rear window. In an instant, whatever he saw was obscured by the darkness. He glanced over his shoulder. Silver was well out of sight. His own dark clothing would be barely visible unless someone were quite close to him.

Then he heard the sound of hoofs. A horse and rider appeared as a vague shadow against the lighted bunkhouse windows. The masked man dropped flat on his stomach, hugging the ground as closely as possible. The rider was coming straight toward him.

He drew a pistol, holding it in readiness if he should be seen. He knew that his hat was light, and might attract attention, but he dared not move it. He felt the ground tremble with the beat of hoofs. He heard the crack of a quirt, cruelly applied, and a man's husky voice. Now the rider was almost upon him, without slackening his speed. The racing horse looked tremendous as it passed within twenty feet of the Lone Ranger. It was impossible to tell who was in the saddle. All details were shrouded by the darkness, but whoever that horseman was, he was in a hurry. He swept across the Basin toward the foot of Thunder Mountain, and the last the masked man saw was the barely perceptible shadow breaking through the underbrush that hid the uphill trail.

The Lone Ranger presently rose to his feet, waited several seconds, and then moved ahead again. This time his destination was the bunkhouse. He could call on Bryant and Penelope later. First, he would investigate to learn, if possible, the reason for the unknown rider's sudden departure.

There was no sound from within the bunkhouse. The masked man advanced toward the side of the long and rather narrow one-story building. The rear, from which the unknown rider had started, was on his right, the front of the building on his left. He could see that a door which opened out was wide, but from his point of view the Lone Ranger couldn't see the inside of the place.

He could hear something going on inside the ranch house, a couple of hundred feet away, but couldn't distinguish the sounds clearly enough to know what they might mean. "Go there," he muttered, "later on."

With increasing caution, he approached the objective until his back was pressed close to the slab side of the bunkhouse at the corner between the lighted windows and the open door. Still there was no sound inside. His gun in readiness, he rounded the corner and looked in the door. He saw a well-lighted room. Double-deck bunks lined each of the side walls, divided by a narrow aisle. In the front part of the room there was one large table, and several chairs. At least twenty men slept here, but now there was no one in sight.

The table had held a poker game which seemed to have been interrupted suddenly. Freshly dealt cards lay face down on the table as they had fallen, before the chairs of the players. The room was littered with battered pictures, extra boots, blanket rolls, and other paraphernalia that would naturally be accumulated by those who slept there. The Lone Ranger stepped inside and drew the door shut behind him.