Night Probe!

Giordino shook his head at Chase's land talk. The captain stoutly refused to voice the language of the sea, using left for port and right for starboard, claiming that ancient tradition did not fit the modern scheme of the times.

The anchor was dropped and the boat secured by lines ru

"Must have been quite a structure in its day."

"Fifth longest in the world when it was built," said Giordino.

"What do you suppose caused it to fall?"

Giordino shrugged. "According to the inquiry report, the evidence was inconclusive. The best theory was high winds combined with lightning strikes weakened a supporting truss."

Chase nodded his head toward the river. "Think it's waiting down there?"

"The train?" Giordino gazed at the moonlit waters. "It's there all right. The wreckage wasn't found in 1914 because all salvage men had at their command were copper-helmeted divers in clumsy canvas suits, groping in zero visibility, and grapples dragged by small boats. Their equipment was too limited and they looked in the wrong place."

Chase lifted his cap and scratched his head. "We should know in a couple of days."

"Less, with any luck."

"How about a beer?" Chase asked, smiling. "I always buy for an optimist."

"I believe I will," said Giordino.

Chase disappeared down a stairwell and made his way to the galley. In the main dining salon the crew could be heard joking among themselves as they adjusted the television dish ante

A sudden chill raised goose bumps on Giordino's hairy arms, and he reached inside the wheelhouse for a windbreaker. As he was pulling up the zipper he hesitated and cocked an ear.

Chase appeared and handed him a beer can. "I didn't bother with glasses."

Giordino held up his hand for silence. "You hear that?"

Chase's brow furrowed. "Hear what?"

"Listen."

Chase tilted his head, his eyes locked in the unseeing stare of a man concentrating on sounds. "A train whistle," he a

"You sure?"

Chase nodded. "I can hear it plainly. Definitely a train whistle."

"Don't you find that odd?" asked Giordino.

"Why should I?"

"Diesel locomotives have air horns. Only the old steam engines blew whistles, and the last one was retired thirty years ago.

"Could be one of those kids' rides at an amusement park somewhere up the river," Chase surmised. "Sound can carry for miles over water."

"I don't think so," Giordino said, cupping his ears and swinging his head back and forth like a radar ante

Chase ducked into the wheelhouse and returned with a land road map and a flashlight. He unfolded the paper over the deck railing and beamed the light.

"Look here," he said pointing to the tiny blue lines. "The main rail line cuts inland twenty miles south of here."

"And the nearest track?"

"Ten, maybe twelve miles."

"Whatever is making that sound is no more than a mile away," Giordino said flatly.

Giordino tried to fix the direction. The blazing moon illuminated the landscape with crystal clarity. He could distinguish individual trees two miles away. The sound was approaching along the west bank of the river above them. There was no movement of any kind, no lights except those of a few distant farmhouses.

Another shriek.

New sounds now. The clangor of heavy steel, the throaty, pulsating exhaust of steam and combustion split the night. Giordino felt as if he was suspended in air. He stood rigid. He waited.

"It's turning-turning toward us," Chase rasped as though he was still trying to convince himself. "God, it's coming off the ruins of the bridge."

They both stared upward at the top of the abutment, unable to breathe, unable to grasp what was happening. All at once the deafening noise of the invisible train exploded out of the dark above them. Giordino instinctively ducked. Chase froze, his face a ghastly corpse-white, the enlarged pupils of his eyes black pits you could fall into.

And then, abruptly, silence-a silence deathlike and ominous.

Neither man spoke, neither moved. They stood rooted to the deck like wax figures without hearts or lungs. Slowly Giordino gathered his thoughts and took the flashlight from Chase's unresisting hand. He shone its beam on the top of the abutment.

There was nothing to see but time-worn stone and impenetrable shadows.

The Ocean Venturer lay anchored over the wreck of the Empress of Ireland. A light rain had passed in the early morning hours and the Venturer's white hull glistened orange under the new sun. In contrast, a tired old fishing boat, its faded blue paint scarred and chipped, lazily trolled its nets two hundred yards away. To the fishermen the Ocean Venturer, silhouetted against the brightening horizon, looked as if it had been created by an artist with a warped sense of humor.

Its hull lines were aesthetic and contemporary. Begi

Functional, if not attractive, the derrick possessed the capability of lowering a variety of scientific packages through the hull to the seafloor or of raising heavy objects such as salvage debris straight into the ship's bowels. The Ocean Venturer was the perfect vessel to act as a work platform for the treaty search.

Pitt stood on the stern, clutching a Portuguese fisherman's cap tightly to his head as the blades of a NUMA helicopter whipped the air around him. For a few moments the pilot hovered while he tested the wind currents. Then he dropped the chopper slowly until the skids settled firmly on the painted markings of the flight pad.

Pitt hunched over, jogged up to the craft and opened the door. Heidi Milligan, dressed in a jumpsuit of cotton painter's cloth in dazzling azure blue, hopped out. Pitt helped her down and took a suitcase that was passed to him by the pilot.

"On your next taxi run," Pitt yelled above the whine of the turbines, "bring us a case of peanut butter."

The pilot waved a casual salute and shouted back, "Shall do."

Pitt escorted Heidi across the deck as the helicopter lifted from the pad and dipped its nose toward the south. She turned to him and smiled. "Does the project director always double as baggage porter?"

"Like the man said," Pitt laughed, "I get no respect."

Several minutes after he showed her to her quarters, she entered the dining salon carrying a packet of papers and sat down beside him. "How was your trip?"

"Productive," she replied. "How's your end?"

"We arrived on site yesterday afternoon, eighteen hours ahead of schedule, and positioned the Ocean Venturer above the wreck."

"What's your next move?"

"A small unma