"No man living could throw that rock across this glade. It's a task for siege engines. Yet here there are no mangonels or ballistas."

"Perhaps it was thrown by some such engine from afar," she suggested.

He shook his head. "It didn't fall from above. It came from yonder thicket. See how the twigs are broken? It was thrown as a man might throw a pebble. But who? What? Come!"

She hesitantly followed him into the thicket. Inside the outer ring of leafy brush, the undergrowth was less dense. Utter silence brooded over all. The springy sward gave no sign of footprint. Yet from this mysterious thicket had hurtled that boulder, swift and deadly. Conan bent closer to the sward, where the grass was crushed down here and there. He shook his head angrily. Even to his keen eyes it gave no clue as to what had stood or trodden there. His gaze roved to the green roof above their heads, a solid ceiling of thick leaves and interwoven arches. And he froze suddenly.

Then rising, sword in hand, he began to back away, thrusting Olivia behind him.

"Out of here, quick!" he urged in a whisper that congealed the girl's blood.

"What is it? What do you see?"

"Nothing," he answered guardedly, not halting his wary retreat.

"But what is it, then? What lurks in this thicket?"

"Death!" he answered, his gaze still fixed on the brooding jade arches that shut out the sky.

Once out of the thicket, he took her hand and led her swiftly through the thinning trees, until they mounted a grassy slope, sparsely treed, and emerged upon a low plateau, where the grass grew taller and the trees were few and scattered. And in the midst of that plateau rose a long broad structure of crumbling greenish stone.