In what seemed a whirlpool of air, or the levitation of an invisible magnetic stream, Altho was drawn to the head on the supporting green light beam. The green light slowly diminished.

The head, with arms holding Altho’s unconscious body, was lowered to the ground. A voice down there shouted hurried commands. The lights all went out sharply. In the starlight, Altho’s body was surrounded by dark surging figures, and dragged away.

The platform swooped to the ledge, landed with a thump.

“Jim! Jim! Are you all right?” It was Dolores’s anxious voice. But Sonya was cold, shuddering. All her hopes were vanished. She knew that they could not go down into the dark valley, with all those armed figures entrenched in the caves. Altho was lost to her.

Jim and Ren rushed to the platform. There was a moment of confused greeting. Jim never knew how it quite happened, but from the other ledge, ten feet above them, a head like Talon suddenly leaped down. It flashed to Jim that the head must all this time have been laboriously climbing in the darkness. Or perhaps had followed some underground passage to the cave up there.

Dolores was standing slightly apart from the others. The head seized her. On the upper ledge a giant bruteman was leaning down; the head tried to lift Dolores to where the dangling arms of the bruteman could reach her, arms which would have pulled her and the head both up to the upper ledge.

It happened so quickly, it was so utterly unexpected, that Jim and the other two girls were for an instant stricken with surprise. Dolores screamed. It was the first that they knew of her peril. She called, “Jim! Jim!”

But Ren was closer. He leaped before Jim, leaped in the dark for the girl’s terrified voice. He struck the head with his shoulder. His groping arms tore Dolores away.

There was a spurt of flame from some weapon the head was carrying. It caught Ren in the chest, drilled him. He fell backward, lay motionless. But he had saved Dolores from her captor. Jim and Alice had reached her.

The bruteman leaned swiftly down. The head held up one of its small arms. The bruteman drew his master to the upper ledge, with a jerk as though he were raising a large, light ball. In the valley they were trying to raise another beam of the green light.