“You’ve found me. May as well come in and state your business.” The communicator was shut off from Vly’s end.

Zip came up on the Castle. It didn’t take long to find the landing site. There were two spacecraft in position in about the middle of the asteroid. One was a small ship suitable for local jaunts, and the other was a normal-sized craft capable of interplanetary travel. The name Sentinel was painted on the side of the larger craft. Both were very old and in places a little battered, but were clearly cared about and well kept up.

The Vigilant Warrior touched down about fifty yards from the closest of Vly’s craft. Joe shut off the engines and pressed the security button. A slight shudder ran through the ship as bolts shot from the fins, securing the ship to the surface. The Starmen disembarked and descended the ladder.

“Over there,” pointed Joe. The entrance to the airlock was discernible across the tiny landing area. The Starmen began walking toward it. The starfield swept away to right and left, with a couple of nearby asteroids visible to the eye. A great horn of stone rose up before them, sweeping to a point above. Behind them a similar horn curved up in the opposite direction.

The ground was uneven, with contours sharply defined. Jagged, broken rock comprised most of the terrain, with a few smooth ripples which rose about twenty or thirty feet from the plain. Shadows were utterly dark in the vacuum of space. The Starmen wore asteroid shoes, designed for walking in low gravity conditions. Their soles had an automatic “smart grip” function that gripped the ground when weight was placed on them, but released when the walker took another step. Without the asteroid shoes, the minimal gravity of “Montezuma’s Castle” would have made walking a difficult, even dangerous, task.

The Starmen saw that the airlock was set into the side of a hill. The hill had been artificially cut away in front of the door. As Zip, Mark, and Joe approached the airlock, the outer door opened. When they had passed through, it shut behind them. Joe kept watch on the instruments as air filled the compartment. When the atmosphere had become normal, he removed his helmet, and Zip and Mark followed suit. They opened the second door and passed through. A dimly-lit stairway led down in front of them. About twenty-five steps brought them to the beginning of a short passageway. At the end was another door. It was solid.

Zip approached the door and paused. He turned his head to the other two, lifted his eyebrows and shrugged. Mark and Joe nodded. Zip knocked. The door was opened almost immediately.

A good-looking, clean-shaven man with dark brown wavy hair looked them over once quickly, then stepped aside. “Come in,” he said, waving a hand while the other held the door. “I’m Montezuma Vly.” He had powerful hands, obviously used to hard labor. His nails had grit under them. Strong as the hands were, they were also clearly the hands of an artist, capable of fine work. He shook hands with the Starmen as they entered.

“Wow!” said Joe, the last to enter. Vly shut the door. The three Starmen gazed about them. They were standing in a small room packed with machinery—old-fashioned machinery used for rock cutting, polishing stones, and mounting specimens. The heady smell of machine oil hung in the air, not heavy like that of an aircraft hangar but attractive and energizing, almost like a perfume.

The machinery was made of cast iron, with wheels and gears, rods and chains visible inside the cases. Mark noted that each machine looked lovingly maintained. The newest machine must have been at least fifty years old, but all were in top quality condition.