He belched contentedly and began to whistle “String of Pearls.”

Samshow had outlived one wife after thirty years of stormy, blissful marriage, the true love of his life, and now had two fine women who doted on him when he was ashore, about seven months out of the year. One was in La Jolla, a plump rich widow, and another was in Manila, a black-haired Filipina thirty years younger than he, distantly related to the long-gone and lamented President Magsaysay.

It was a warm, strange dry night, quiet and still, a night for deep thinking and old memories. He felt a sudden onslaught of laziness; the hell with science, the hell with perfect results and plus or minus two milligals. He’d rather be walking some beach watching breakers explode with phosphorescence. The feeling passed but left its mark; it was one of the few ways his body told him he was getting old. He turned and stepped over the chain, then froze, catching something odd in the upper half of his vision.

He jerked his head back. A tiny point of light arced rapidly from the north: a satellite, he thought — or a meteor. He could barely see it now. The point had almost lost itself among the stars when it suddenly brightened to blowtorch intensity, throwing two distinct flares southward at least three degrees. The flares lighted the entire sea in stark, eerie pewter, and then went out. The much dimmer object passed directly overhead. He made a mental note of the position — about four o’clock high — and was working on which constellation it had appeared in, when the object brightened again about twenty degrees farther south, much smaller, barely a pinprick. He had never seen a meteor like it — a real stunner, an on-again, off-again fireball.

“On the bridge! Heads up!” he yelled. “Hey! Everybody, look at this!”

The prick of light fell slowly enough to track easily. In a few minutes, it met the horizon and was gone, leaving tiny patches of green and red swimming in his vision.

Where it had struck, a column of water and steaming spray arose, barely visible in the moonlight, radiating a halo of cloud about ten degrees above the horizon.

“Jesus,” Samshow said. He started for the bridge to ask if anyone else had seen it. Nobody had replied to his shout. He was halfway up the steps when a horrendous gonglike shudder rang through the ship. He paused, startled, and finished his climb to the bridge.

The first officer, an intense young Chinese named Chao, glanced at Samshow from the controls. The bridge and most instrumentation were illuminated in dull red, not to impair night vision. “Big storm coming,” Chao said, pointing to the ship’s status display screen. “Fast. Typhoon, waterspout. Don’t know.”

Four men leaped onto the bridge from three different hatches, and voices squawked on the intercom from around the ship.

“A meteor,” Samshow explained. “Went down just like that, made a big spout about thirty kilometers due south.”

Captain Reed, twenty years younger than Samshow but even more gray and grizzled, came onto the bridge from his cabin, nodded curtly, and gave him a dubious glance. “Mr. Chao, what is this coming?”

“Blow, Captain,” Chao said. “Damn big storm. Coming fast.” He pointed to the enhanced radar images. Clouds rushed at them in a blue and red scythe. The storm was already visible through the glass forward.

David Sand came from belowdecks huffing, red-faced, and swearing. “Walt, whatever that was, it’s just screwed up everything. We have a — Jesus Christ!” He recovered from the sight of the approaching front and began swearing again. “It was going just fine, and now there’s a jag on the graph.”

“Jag?” Captain Reed asked.

“Extremely short wavelength anomaly. Deep decline, zero for an instant, then a slow increase — it’s ruined! We’ll have to recalibrate, maybe even send all three tubs back to Maryland.”

The captain ordered the ship turned bow-on to face the storm. Warnings, whistles and shouts and electric bells, sounded all around the ship.

“What’s happening?” Sand asked, concern finally replacing his anger.

“Meteor,” Samshow said. “Big one.”

The front hit seven minutes after Samshow saw the fireball strike the horizon.

The ship fell forward into canyonlike wave troughs, its bow knifing ten and fifteen meters into the black water, and then rode upward over the crests, the bow now pointing at the rain-lashed sky. Samshow and Sand tightly gripped rails mounted on the bridge bulkheads, grinning like fools., while the crew worked to control the ship and the Captain stared stonily forward.

“I’ve been through worse!” Samshow shouted at his partner over the roar.

“I haven’t, I don’t think,” Sand shouted back.

“It’s exhilarating. Something truly exotic — a real first. An observed large meteor fall in midocean, and its results. We’d better alert all coasts.”

“Who’s going to write the paper?”

“We’ll do it together.”

“I locked down the equipment after the anomaly. We’ll have to make another run when this clears up.”

The Discoverer, Samshow thought, would weather the storm easily enough. It was not going to be a long blow. When he was sure of this, as the violent rain and waves declined, he retired to his quarters to look up the facts and figures and equations he would need to understand what had just happened. Sand staggered down the stairs and corridors, stopping in Samshow’s hatchway long enough to say he was going to check again on his blessed gravimeters.

The next day, when it was their turn to present the story by radio to the expedition’s chiefs in La Jolla, they had still not sorted out their findings.

One thing puzzled them both immensely. All three gravimeters had registered the “jag” simultaneously. Shock had not caused the anomaly; the gravimeters had been designed to be carried aboard aircraft as well as ships, and could weather relatively rough treatment handily. Besides, the shock had occurred after the appearance of the spikes.

Sand put together a list of hypotheses, and revealed one candidly to Samshow when they were alone. “It’s simple, really,” he said in the galley over a late breakfast of corned-beef hash and butter-soaked wheat toast. “I made some calculations and compared the spikes on the three traces. The three tubs aren’t really far enough apart to make the results authoritative, but I checked the digital record of each spike and found a very small time interval between them. I can explain the time interval in only one way. Doing a tidal analysis, and subtracting the ship’s reaction as a gravitated object, the traces show an enormous mass, about a hundred million tons, traveling in an arc overhead.”

“Coming from what direction?” Samshow asked casually.

“Due north, I think.”

“How far away?”

“Anywhere from a hundred to two hundred kilometers.”

Samshow considered that for a moment. Whatever the fireball had been, it had been far too small to mass at anything like a hundred tons, much less a hundred million. It would have spread the Pacific out like coffee in a cup if it had been a mountain-sized meteoroid. “All right,” he said. “We ignore it. It’s an official anomaly.”

“On all three gravimeters?” Sand asked, grinning damnably.

NEC National News Commentator Agnes Linder, November 2, 1996:

The newest twist in a very twisted election year, the arrival of visitors from space, almost defies imagination. United States citizens, recent polls show, are in a state of rigid disbelief.

The Australian extraterrestrials have arrived on Earth too soon, some pundits have said; we aren’ t ready for them, and we cannot begin to comprehend what they might mean to us.

Presidential candidate Beryl Cooper and her running mate, Edgar Farb, have been on the offensive, charging that President Crocker-man is hiding information provided by the Australians, and questioning whether in fact the United States is not behind the destruction — some say self-destruction — of the robot representatives in the Great Victoria Desert.