Kerans pulled himself to his knees, waiting for Macready to leap forward at him, but the Sergeant, with Riggs beside him, was buddIed against a pillar, his eyes staring blankly at the floor in front of them, as if asleep or entranced.

Stepping away from the fountain, Hardman moved slowly across the square, in and out of the shifting curtains of light. He passed Within twenty feet of Kerans, who knelt hidden behind the column, One hand on Wilson 's shoulder, quieting the man's low grumbling. Skirting the helicopter, Hardman reached the far end of the courthouse and there left the square, walking steadily up a narrow incline towards the silt banks which stretched along the shore a hundred yards away.

Acknowledging his escape, the intensity of the sunlight diminished fractionally.

"Colonel Riggs!"

Macready plunged down the steps, shielding his eyes from the glare, and pointed off across the silt flat with his Thompson. Riggs followed him, hatless, his thin shoulders pinched together, tired and dispirited.

He put a restraining hand on Macready's elbow. "Let him go, Sergeant. We'll never catch him now. There doesn't seem to be much point, anyway."

Safety two hundred yards away, Hardman was still moving strongly, undeterred by the furnace-like heat. He reached the first crest, partly hidden in the huge pails of steam which hung over the centre of the silt flat, fading into them like a man disappearing into a deep mist. The endless banks of the inland sea stretched out in front of him, merging at their edges into the incandescent sky so that to Kerans he seemed to be walking across dunes of whitehot ash into the very mouth of the sun.

For the next two hours he sat quietly in the museum, waiting for the cutter to arrive, listening to Riggs' irritated grumbling and Daley's lame excuses. Drained by the heat, Kerans tried to sleep, but the occasional crack of a carbine jolted through his bruised brain like the kick of a leather boot. Attracted by the sounds of the helicopter, a school of iguana had approached, and the reptiles were now sidling around the edges of the square, braying at the men on the steps of the museum. Their harsh shrieking voices filled Kerans with a dull fear that persisted even after the cutter's arrival and their return journey to the base. Sitting in the comparative cool ness under the wire hood, the green banks of the channel sliding past, he could hear their raucous barks.

At the base he settled Wilson in the sick-bay, then sought out Dr. Bodkin and described the events of the morning, referring in passing to the voices of the iguanas. Enigmatically, Bodkin only nodded to himself, then remarked: "Be warned, Robert, you may hear them again."

About Hardman's escape he made no comment.

Kerans' catamaran was still moored across the lagoon, so he decided to spend the night in his cabin at the testing station. There be passed a quiet afternoon, nursing a light fever in his bunk, thinking of Hardman and his strange southward odyssey, and of the silt banks glowing like luminous gold in the meridian sun, both forbidding and inviting, like the lost but forever beckoning and unattainable shores of the amnionic paradise.