"Of course-" She drew him away from the window. " Aragon -he can see us here."

The lace curtain lay on the floor at their feet, the mantilla Sanders had seen from the drained fountain in the garden. As Louise began to kneel down on it, holding his hands, he shook his head, then kicked it away into the corner.

Later, when they returned to the motor-boat, Aragon met them halfway down the pier. "We should leave, Doctor," he said, "the boat is exposed here-sometimes they patrol the river."

"Of course. How many soldiers are there in the Mont Royal area?" Sanders asked.

"Four or five hundred. Perhaps more."

"A battalion? That's a lot of men, Captain." He offered Aragon a cigarette from his case as Louise walked on ahead. "That incident in the native harbor last night-did you see it?"

"No, I heard this morning-those market boats are always catching fire."

"Perhaps. There was an attack on a man I know-a European called Ventress." He looked up at Aragon. "There was a large motor-cruiser with a cannon on the deck-you may have seen it on the river?"

Aragon 's face gave nothing away. He shrugged vaguely. "It could belong to one of the mining companies. I haven't met this Ventress." Before Sanders could move on he added: "Remember, Doctor, there are many interests in Mont Royal that wish to stop people from going into the forest-or leaving it."

"I can see that. By the way, that drowned man in the harbor this morning-when you saw him, was he lying on a raft, by any chance?"

Aragon inhaled slowly on the cigarette, watching Sanders with some respect. "That's a good guess, Doctor."

"And as for this armor of light, was he covered with the crystals from head to foot?"

Aragon gave him a grimace of a smile, revealing a gold eye-tooth. He tapped it with his forefinger. "'Covered'-is that the right word? My tooth is the whole gold, Doctor."

"I take the point." Sanders gazed down at the brown water sweeping past the polished timbers of the jetty. Louise waved to him from her place in the boat, but he was too preoccupied to reply. "You see, Captain, I'm wondering whether this man, Matthieu he was called, was dead in the absolute sense when you saw him. If, say, in the choppy open water of the harbor he had been knocked from the raft, but still held on in some way with one hand-that would explain a lot. It might have very important consequences. You see what I mean?"

Aragon smoked his cigarette, watching the crocodiles that lay in the shallows below the opposite bank. Then he threw the half-smoked cigarette into the water. "I think we should set off for Mont Royal now. The army here is not very intelligent."

"They have other things to think about, but you may well be right. Mile. Peret thinks there is a physicist on the way. If so, he should be able to prevent any more tragic accidents."

Just before they started off Aragon turned to Dr. Sanders and said: "I was wondering, Doctor, why you were so eager to go to Mont Royal."

The remark seemed by way of apology for earlier suspicions, but Sanders found himself laughing defensively. With a shrug he said: "Two of my closest friends are in the affected zone, as well as Louise's American colleague. Naturally we're worried about them. The automatic temptation of the army will be to seal off the entire area and see what happens. They were loading barbed wire and fencing in the barracks at Port Matarre yesterday. For anyone trapped within the cordon it could be like being frozen solid inside a glacier."

Five miles from Mont Royal the river narrowed to little more than a hundred yards in width. Aragon reduced the speed of their craft to a few knots, steering between the islands of rubbish that drifted by, and avoiding the creepers that hung far out over the water from the high jungle walls on either side. Sitting forward, Dr. Sanders searched the forest, but the great trees were still dark and motionless.

They emerged into a more open stretch, where part of the undergrowth along the right-hand bank had been cut back to provide a small clearing. As Dr. Sanders pointed to a collection of derelict outbuildings, there was a tremendous blare of noise from the forest canopy above them, as if a huge engine had been mounted in the top-most branches, and a moment later a helicopter soared past above the trees.

It disappeared from view, its noise reverberating off the foliage. The few birds around them flickered away into the darkness of the forest, and the idling crocodiles submerged into the bark-stained water. As the helicopter hovered into view again a quarter of a mile ahead of them, Aragon cut the throttle and began to turn the craft toward the bank, but Sanders shook his head.

"We might as well carry on, Captain. We can't make it on foot through the forest. The farther we can go upriver the better."

As they continued down the center of the channel the helicopter continued to circle overhead, sometimes swinging up to a height of eight or nine hundred feet, as if to take a better look at the winding river, at other times soaring low over the water fifty yards in front of them, the wheels almost touching the surface. Then, abruptly, it zoomed away and carried out a wide circuit of the forest.

Rounding the next bend, where the river widened into a small harbor, they found that a pontoon barrage stretched across the channel from one bank to the next. On the right, along the wharves, were the warehouses bearing the names of the mining companies. Two landing craft and several military launches were tied up, and native soldiers moved about unloading equipment and drums of fuel. In the clearing beyond, a substantial military camp had been set up. The lines of tents ran off between the trees, partly hidden by the gray festoons of moss. Large piles of metal fencing lay about, and a squad of men were painting a number of black signs with luminous paint.

Halfway across the pontoon barrage a French sergeant with an electric megaphone called to them, pointing to the wharves. "A droite! A droite!" A group of soldiers waited by the jetty, leaning on their rifles.

Aragon hesitated, turning the boat in a slow spiral. "What now, Doctor?"

Sanders shrugged. "We'll have to go in. There's no point in trying to cut and run for it. If I'm going to find the Clairs, and Louise is to get her story, we'll have to do it on the army's terms."

They coasted in toward the wharf between the two landing craft, and Aragon threw the lines up to the waiting soldiers. As they climbed up on to the wooden deck the sergeant with the megaphone walked down the barrage.

"You made good time, Doctor. The helicopter only just caught up with you." He pointed between the warehouses to a small landing field by the camp. With a roar of noise, throwing up a tremendous fountain of dust, the helicopter was coming in to land.

"You knew we were coming? I thought the telephone line was down."

"Correct. But we have a radio, you know, Doctor." The sergeant smiled amiably. His relaxed good humor, uncharacteristic of the military in its dealings with civilinns, suggested to Sanders that perhaps the events in the forest near by for once had made these soldiers only too glad to see their fellow men, whether in uniform or out.

The sergeant greeted Louise and Aragon, consulting a slip of paper. "Mile. Peret? Monsieur Aragon? Would you come this way? Captain Radek would like a word with you, Doctor."

"Certainly. Tell me, Sergeant, if you have a radio how is it that the police at Port Matarre have no idea what's going on?"

"What _is_ going on, Doctor? That's a question many people are trying to solve at this moment. As for the police at Port Matarre, we tell them as little as we think good for them. We're not eager to spread rumors, you know."