The members of this group usually continued their work in plants and laboratories outside. Each year, when their vacation-time came up, they would rush off to a little radio repair shop in Stockton and have a quiet talk in the back room with its youthful proprietor. That night, they would drive up into the mountains to an old, abandoned sawmill, where a strange ship would drop out of the darkness to greet them....


It was a deep, twisting canyon east of the Kawich Range. Sand-stone cliffs towered up nearly three hundred feet on each side and a spring-fed stream trickled along the boulder-strewn floor, curling around clumps of stunted pine trees and dense brush. The wind sometimes tore through the canyon with a deep, mournful whistle.

Farther up, the canyon widened out. A pile of giant boulders formed an island in the middle of the floor and cliff-dwellers had built their dwellings in a large cave half-way up on one wall. Those dwellings were now occupied and joined by slender spans to the three sleek towers rising up from the island. At the foot of the island, a flat space had been cleared and long, low sheds built around it.

In the middle tower overlooking the clearing, which was now occupied by a slender, black ship. Morrow sat before the observation wall of his living room and gazed downward. He wore a simple pair of trunks on his tanned body, and socks and sneakers on his feet.

The man sitting in the chair next to him was tall, broad-shouldered, and husky. There was a two-day growth of beard on the lean face and the soiled white trousers and shirt looked as though they had been slept in. The man's eyes were cautious and tense when he glanced over his shoulder.

Smitty was standing behind his chair. Smitty wore the same casual attire that Morrow did, with the addition of a cartridge belt and holstered pistol about his thighs. The brown hand resting on the pistol-butt—it was a Colt .45 revolver—gave their visitor silent confirmation to the fact that he was, essentially, their prisoner.

"So it took you just six months to find us, did it?" Morrow asked musingly. "Too bad about the shipping records on those plastic construction materials—you must have traced down the shipments from every company in the country before you found that."

"We traced nearly all of them," the visitor conceded. "In fact, this one would've escaped our notice if you'd used any half-reasonable company in Stockton to cover up your use of the materials."

Morrow took cigarettes and matches from the pocket of his trunks and proceeded to light up, calmly. It was nearing sunset and the canyon was already plunged into a blue twilight, in which the lights in the towers and on the small landing field below glowed softly, in soothing pastel colors.