out. A sign warned NO SWIMMING, for there were treacherous tidal currents here. That was why Don had selected this spot and this time to make his cycling debut; it was least likely to harbor prying eyes. He had been given a place and a time to be there; his exact schedule was his own business.
The tide was out. Don walked his bicycle across the beach until he reached the packed sand near the small breaking waves. Myriad tiny shells formed a long low hump, and he realized that early-rising collectors could appear at any moment. Why hadn’t he thought of that before? Yet when else could he enter the water, clothed and on a bicycle, by daylight? He simply had to risk it.
Beyond the shell ridge, the sand was wet and smooth. He looked carefully, both ways, as if crossing a busy intersection. Was he hoping that there would be someone, so that he would have to call it off?
No, he wanted to do it, Don reassured himself. In any event, his timing was such that he could not spare the hours an alternate approach would require. He had chosen dawn at this beach, and now he was committed. He had been committed all along. It was just that—well, a bit hard to believe. Here he was, a healthy impetuous fair-complexioned beginning archaeologist with a bicycle—and a remarkable opportunity. What could he do except grasp it, though he hardly comprehended it?
Don remounted and pushed down hard, driving his machine forward into the flexing ocean. The waves surged through the wheels, offering no more resistance than air. He moved on, feeling the liquid against his legs as the force of gentle wind. He didn’t really need more power, but he shifted into first anyway, bolstering his confidence. It remained hard to believe that he was doing this.
The bottom dropped, and abruptly he was coasting down into deeper water. Too fast for his taste. Now he did backpedal, futilely. There was no coaster brake on this machine!
The water rose up to his thighs, then his chest, then his neck. Still he coasted down. In another instant it was up across his face, and then it closed over his head. Don did not slow or float; he just kept going in.
He could see beneath, now. There was a rocky formation here, perhaps formed of shell. He would have investigated the local marine terrain more carefully, if only he had had time. But the whole thing had been set up so rapidly that he had barely had time to buy his bike before going through the tunnel. Now here he—
He realized that he was holding his breath. He forced himself to breathe, surprised in spite of himself that he still could do it. He had tested it by plunging his head into a tub of water, but somehow the surging sea water had restored his doubt. He applied his handbrakes.
The bicycle glided to a halt. Don braced it upright by spreading his legs, and rested in place for a moment with his eyes closed. This way he could breathe freely, for he couldn’t see the surrounding water.
Don found himself cowering. He knew he was not physically courageous, but this seemed to be an overreaction. In a moment he realized why: it was the noise.
He had somehow imagined that the underwater realm was silent. Instead it was noisier than the land. Some was staccato sound, some was whistling, and some was like the crackling of a hot frying pan. Grunts, clicks, flutters, swishes, honks, rattling chains, cackling hens, childish laughter, jackhammers, growls, knocking, whining, groaning, mouse squeaks—it all merged into a semi-melodious cacophony. He had no idea what was responsible for the assault, but was sure that it couldn’t all be inanimate. The nearest commercial enterprise was twenty miles away!
Could fish talk? Probably he would soon find out. It would be no more fantastic than the other recent developments of his life.
He was way under the water, standing and breathing as if it didn’t exist. How had he gotten into this?
“Well, it all started about twenty three years ago when I was b-born,” he said aloud, and laughed. He was not unduly reflective, but he did stutter a bit under tension. So maybe it wasn’t really funny.
Don opened his eyes.
He was down under, all right. He could see clearly for perhaps twenty feet. Beyond that was just bluegreen water-color wash. Above him, eight or ten feet, was the restless surface: little waves cruising toward ruin against the beach. Beneath him was a green meadow of sea grass, sloping irregularly down.
Now that he was stationary, he did not feel the water. He waved his hands, and they met no more resistance than they might have in air. It was warm here: about 88° Fahrenheit according to the indicator clipped to his bicycle. The temperature of subtropical coastal water in summer. He would be able to work up a sweat very quickly—unless he chose to descend to the deeper levels where the water got cold. He did not choose to do so, yet. Anyway, he was largely insulated from the water’s temperature, as he was from its density. That was all part of the miracle of his situation.
A small fish swam toward him, evidently curious about this weird intruder. Don didn’t recognize the type; he was no expert on marine biology. In fact he didn’t know much about anything to do with the ocean. It was probably a nondescript trash fish, the kind that survived in these increasingly polluted waters. This one looked harmless, but of course even the deadliest killer shark was not harmful to him now. He was really not in the water, but in an aspect of reality that was just about 99.9% out of phase with what he saw about him. Thus the water had the effective density of air.
In impulse, he grabbed at the fish as it nosed within reach. His hand closed about its body—and passed through the flesh as if it were liquid foam. The bones of his fingers hooked into the bones of its skeleton without actually snagging.
Don snatched his hand away. Equally startled, the fish flexed its body and shot out of range. There had been a kind of contact, but not one that either party cared to repeat. No damage done, but it had been a weird experience.
It was one thing to contemplate a reality interaction of one part in a thousand, intellectually. It was quite another to tangle with a living skeleton.
Well, he had been warned. He couldn’t stand around gawking. He had a distance to travel. The coordinate meter mounted beside the temperature gauge said 27°40’—82°45’. He had fifteen hours to reach 27°0’—83° 15’. He had been told that a degree was sixty minutes, and a minute just about a mile, depending on location and direction. This sounded to his untrained ear like a mish-mash of temperature, time, and distance muddled by an incomprehensible variable. It seemed that he had about thirty miles west to go, and about forty south, assuming that he had not become hopelessly confused. The hypotenuse would be fifty miles, per the three-four-five triangle ratio. Easy to make on a bicycle, since it came to only three and a third miles per hour average speed.
Of course he probably wouldn’t be able to go straight. What was his best immediate route?
He didn’t want to remain in shallow water, for there would be bathers and boaters and fishermen all along the coast. His depth meter showed two fathoms. That would be twelve feet from bike to surface. Entirely too little, for he must be as visible from above as those ripples were from below. How would a boater react if he peered down and saw a man bicycling blithely along under the water?
But deep water awed him, though he knew that pressure was not a significant factor in this situation. Men could withstand several atmospheres if they were careful, and he had been told that there were no depths in the great Atlantic Ocean capable of putting so much as two atmospheres on him in his phased-out state. He could ignore pressure. All of which somehow failed to ease the pressure on his worried mind. This business just wasn’t natural.
He would take a middle course. Say about a hundred feet, or a bit shy of seventeen fathoms. He would stick to that contour until he made his rendezvous.
Don pushed on the left pedal—somehow that was his only comfortable starting position—and moved out. The seagrass reached up with its long green leaves, obscuring his view of the sloping floor. But his wheels passed through the weeds, or the weeds through the wheels, and so did his body. There was only a gentle stroking sensation that affected him with an almost sexual intimacy as plant collided with flesh. The grass might be no denser than the water, but it was solid, not liquid, and that affected the contact.
He