She was not there. She had drifted back amid the rainbow crystals.
Arnsen could not overtake her. It was like following a will-o'-the-wisp, a torch of St. Elmo's fire. But he did not take his eyes from the girl. More than once he fell. She was leading him away from the ship, he knew. That did not matter. Not if she also led him to Doug.
What had she done with the boy? He hated her, hated her relentless inhumanity, her incredible beauty. Teeth bared, red-rimmed eyes glaring, Arnsen plunged on in a nightmare race across the face of the silent asteroid.
Hours later, it seemed, she vanished in black shadow under a thrusting pinnacle of slag. Arnsen followed, reeling with fatigue, expecting to cannon into a rock wall. But the darkness remained intangible. The ground sloped down beneath his leaded boots. Suddenly light shone through a cleft at his side.
Pale, warm, liquid light, it drifted up from a slanting corridor in the rock. Far down the passage Arnsen could see the cloud of dancing flames that marked the girl's crystal attendants. He stumbled on.
Down he went, and down, till at last the passage turned again in the distance. He rounded the bend—and stopped, blinded and dazed.
As his vision adjusted itself, Arnsen made out a pillar of fire that rose from floor to ceiling of the cavern before him. Yet it was not fire. It was something beyond human knowledge. Pure energy, perhaps, wrenched from the locked heart of the atom itself, silently thundering and pouring up like a geyser. The pillar shook. It wavered and rocked, coldly white, intensely brilliant, like a living thing blazing with a power inconceivable.
Walls and floor and roof of the cavern were crusted with jewels. The rainbow crystals clung quivering, thousands of them, some tiny, others huge. They watched.
They were alive.