He reached the bottom of the last rock slide, and looked back; in the failing light he could just make out the mesa rim, above which must lie the aeros' eyrie. Nothing moved up there. She would be at home now, among her own kind. VIII When he turned away, he saw the stranger standing not far off, beneath a great stone promontory that thrust out into the sea of sand, his back to a deep black cleft in the rock. Torcred could see his face clearly this time, and this time it was unsmiling, the brows drawn together and lips compressed in an expression of anxiety. The stranger beckoned with a jerky urgency, half-turned, and pointed toward the crevice of the cliff. Torcred took a step toward him, his anger boiling up dangerously, blood drumming in his ears. "What are you?" he shouted. "What do you want? You've dogged my steps, watched me, and applauded my downfall. Now what--" The stranger's eyes shifted, and he moved his head as if listening to a voice that Torcred did not hear. His eyes widened with alarm, and he vanished like a blown-out flame. Torcred blinked baffledly. The hand on the hilt of his knife relaxed, but the roaring in his ears grew louder. Almost it might be real.... He threw back his head and looked up. Far above, individually almost indistinguishable in the pale twilight sky but making it alive with their massed formations, V after V of black flying shapes were moving. The air throbbed with the vibrant roar of many engines. The leading squadrons were already over the mountain when the first dart of flame leaped from it and climbed with a whistling rush to meet them. Others followed, the clatter of their guns mingling with the multiple crescendo shriek of the first sticks of falling bombs. Torcred crouched involuntarily, bracing himself for the concussions that must shake earth and air.... But only dull thudding sounds rolled down from the mesa, as if the rain of projectiles fell without exploding. Over the mountain two buzzards dropped out of formation and wobbled earthward, trailing smoke down the sky, and a third burst into bright flame and disintegrated in a meteoric shower. New formations still came droning out of the north--the buzzards were attacking in force. Their bombs kept landing with sullen thumps, almost inaudible under the roar of motors, the sputter of guns and the flat reports of aerial cannon. But to Torcred, hugging the lee of a great boulder and trying with straining eyes to pierce the darkness that increasingly shrouded the mesa, those dull incessant impacts became an ominous sound. Ladna had gone up there--she had had plenty of time to reach safety in the buried heart of the eyrie, which even the mightiest explosives could scarcely touch--but without knowing why, Torcred edged out of his shelter and began once more, creeping from rock to rock, to clamber up the steep ravine that the two of them had ascended together.