There was a knock on the door. The sergeant put his head through. "The inspection party is ready to leave, sir."

"Good." Radek stood up and took his cap from the peg. "We'll have a look, Doctor. I think you'll be impressed."

Five minutes later the party of visitors, some dozen in number, set off in one of the amphibian craft. Father Balthus was not among them, and Sanders assumed that he had left for his mission by road. However, when he asked Radek why they were not approaching Mont Royal by the highway the captain told him that the road was closed. In response to Sanders's request, the captain arranged to make contact by field telephone with the clinic where Suzanne and Max Clair were working. The owner of the mine near by, a Swedish-American by the name of Thorensen, would tell them of Sanders's arrival, and with luck Max would be at the wharf to meet him when they landed.

Radek had heard nothing of Anderson 's whereabouts. "However," he explained to Louise before they embarked, "we ourselves have had great difficulty in taking photographs-the crystals look like wet snow, in Paris they're still sceptical-so he may be hanging about somewhere, waiting for a convincing picture."

As he took his seat near the driver in the bow of the amphibian, Dr. Sanders waved to Louise Peret, who was watching from the wharf on the other side of the pontoon-barrage. He had promised to return with Max for her after they had visited the affected area, but even so Louise had made a half-hearted attempt to stop him going at all.

"Edward, wait till I can come with you-it's too dangerous for you-"

"My dear, I'm in good hands-the Captain will see everything is all right."

"There's no danger, Mlle. Peret," Radek assured her. "I will bring him back."

"I didn't mean-" She embraced Sanders hurriedly and walked back to where Aragon sat in the speedboat, talking to two of the soldiers. The presence of the barrage seemed to mark off one section of the forest from the other, a point beyond which they entered a world where the normal laws of the physical universe were suspended. The mood of the party was subdued, and the officials and French experts sat in a group at the stern, as if to place the maximum possible distance between themselves and whatever was to face them ahead.

For ten minutes they moved forward, the green walls of the forest slipping past on either side. They met a convoy of motor launches harnessed together behind a landing craft. All of them were crammed with cargo, their decks and cabin roofs loaded with household possessions of every kind, perambulators and mattresses, washing machines and bundles of linen, so that there were only a few inches of freeboard amidships. The solemn-faced French and Belgian children sat with suitcases on their knees above the freight. Their parents gazed expressionlessly at Sanders and his companions as they passed.

The last of the craft moved by, dragged through the disturbed water. Sanders turned and watched it go.

"You're evacuating the town?" he asked Radek.

"It was half-empty when we came. The affected zone moves about from one place to another, it's too dangerous for them to stay."

They were rounding a bend, as the river widened in its approach to Mont Royal, and the water ahead was touched by a roseate sheen, as if reflecting a distant sunset or the flames of a silent conflagration. The sky, however, remained a bland limpid blue, devoid of all clouds. They passed below a small bridge, where the river opened into a wide basin a quarter of a mile in diameter.

With a gasp of surprise they all craned forward, staring at the line of jungle facing the white-framed buildings of the town. The long arc of trees hanging over the water seemed to drip and glitter with myriads of prisms, the trunks and branches sheathed by bars of yellow and carmine light that bled away across the surface of the water, as if the whole scene were being reproduced by some over-active Technicolor process. The entire length of the opposite shore glittered with this blurred kaleidoscope, the overlapping bands of color increasing the density of the vegetation, so that it was impossible to see more than a few feet between the front line of trunks.

The sky was clear and motionless, the sunlight shining uninterruptedly upon this magnetic shore, but now and then a stir of wind crossed the water and the scene erupted into cascades of color that rippled away into the air around them. Then the coruscation subsided, and the images of the individual trees reappeared, each sheathed in its armor of light, foliage glowing as if loaded with deliquescing jewels.

Moved to astonishment, like everyone else in the craft, Dr. Sanders stared at this spectacle, his hands clasping the rail in front of him. The crystal light dappled his face and suit, transforming the pale fabric into a brilliant palimpsest of colors.

The craft moved in a wide arc toward the quay, where a group of launches were being loaded with equipment, and they came within some twenty yards of the trees, the hatchwork of colored light across their clothes transforming them for a moment into a boat-load of harlequins. There was a round of laughter at this, more in relief than amusement. Then several arms pointed to the water-line, and they could see that the process had not affected the vegetation alone.

Extending outwards for two or three yards from the bank were the long splinters of what appeared to be crystallizing water, the angular facets emitting a blue and prismatic light washed by the wake from their craft. The splinters were growing in the water like crystals in a chemical solution, accreting more and more material to themselves, so that along the bank there was a congested mass of rhomboidal spears like the barbs of a reef, sharp enough to slit the hull of their craft.

A hubbub of speculation broke out in the launch, during which only Dr. Sanders and Radek remained silent. The captain was gazing up at the overhanging trees, encrusted by the translucent lattice, through which the sunlight was reflected in rainbows of primary colors. Unmistakably each tree was still alive, its leaves and boughs filled with sap. Dr. Sanders was thinking of Suzanne Clair's letter. She had written, "The forest is a house of jewels." For some reason he felt less concerned to find a so-called scientific explanation for the phenomenon he had just seen. The beauty of the spectacle had turned the keys of memory, and a thousand images of childhood, forgotten for nearly forty years, filled his mind, recalling the paradisal world when everything seemed illuminated by that prismatic light described so exactly by Wordsworth in his recollections of childhood. The magical shore in front of him seemed to glow like that brief spring.

"Dr. Sanders." Radek touched his arm. "We must go now."

"Of course." Sanders pulled himself together. The first passengers were disembarking from the gangway at the stern.

As he walked back between the seats Dr. Sanders started with surprise, pointing to a bearded man in a white suit who was crossing the gangway.

"There-! Ventress!"

"Doctor?" Radek caught up with him, peering solicitously into Sanders's eyes as if aware of the forest's impact. "Are you unwell?"

"Not at all. I… thought I recognized someone." He watched Ventress sidestep past the officials and make off down the quay, his bony skull held stiffly above his shoulders. A faint multi-colored dappling still touched his suit, as if the light from the forest had contaminated the fabric and set off the process anew. Without a backward glance, he stepped between two warehouses and disappeared among the sacks of cocoa meal.

Sanders stared after him, unsure whether he had in fact seen Ventress-had the white-suited figure been some kind of hallucination set off by the prismatic forest? It seemed impossible for Ventress to have smuggled himself aboard the craft, even by masquerading as one of the agriculture experts, though Sanders had been so distracted by the prospect of seeing the affected zone for the first time that he had not bothered to look closely at his fellow passengers.