OUGH there was no wind, the wide surface of the estuary was curiously disturbed. In from the open sea came swiftly as it were a wedge of roughness, its edges lightly dancing, sparkling with blue-and-silver flashes. The strange disturbance kept on straight up the channel, leaving the placid shoals along-shore to shine unruffled in the low, level-glancing Arctic sun.

Down along the flat, interminable shore, picking his way watchfully among the ragged ice-cakes of the tempestuous spring, came a huge white bear. His small, snaky, cruel head was bent downwards, while his fierce little eyes peered among the tumbled ice blocks for possible dead fish. His long, loose-jointed body twisted sinuously as he moved—the only living creature to be seen up and down the level desolation of those bleak shores.

The white bear was an old male, restless, and of savage temper. Like many of his fellows among the older males, he had not been so fortunate as to slumber away the long, terrific, Arctic winter in the shelter of a snow-buried rock. All through the months of dark and tempest, of ghostly auroras and cold unspeakable, he had roamed the dead world and fought his fight with hunger. His craft, his strength, his fierce desperation in attack, had pulled him through. Lean and savage, he sniffed the oncoming of spring, and watched the ice go grinding out.

Presently his keen ears noted a faint sound, which seemed to blow in from the sea. As there was no wind, this was worthy of note. Lifting his black nose high above the ice-cakes, he sniffed and peered intently at the inrushing wedge of tumbled water. His uncertainty was not for long. The salmon were returning. This was the vanguard of the spring run.

For a few seconds the great white shape stood as if turned to stone, watching the radiant confusion. Here and there he saw a slender body flash forth for an instant, half its length above the sparkling water, as if striving to escape some unseen enemy. The school was making for the main channel, which ran between two low, naked islets of rock, perhaps half a mile apart. The nearest of these was about three hundred yards from the shore. As soon as the bear made sure that the salmon were taking this course, he galloped at top speed—a long, loose, shambling, but rapid pace—down along the shore till just abreast of the islet. Then he plunged in and swam for it, his sharp black muzzle and narrow white head cleaving the smooth flood with almost incredible swiftness, and throwing off an oily, trailing ripple on either side. When he reached the islet the front of the salmon school was still some forty or fifty paces distant. He crossed the rocks, slipped smoothly down into the water again, and waited for the shining turmoil to break upon him.

For some reason known only to the hosts of the salmon themselves, however, the shining turmoil swerved as it approached the islet, crowding over toward the other side of the channel. The bear's hungry little eyes blazed savagely at this. He imagined the hordes had taken alarm at his dread presence,—a natural imagining on his part, since he knew of nothing but the old bull walrus that dared ever await his approach. But as a matter of fact the eager myriads of the salmon, thrilling with life and vigour and the mating fire of spring, were no more conscious of the savage animal than if he had been a rock or an ice-floe. The joy of the incoming rush was in their splendid sinews, and the lure of the shallow, singing rapids in their veins. To that exultant host an enemy, however formidable, was but an incident. The exhaustless fertility of their race derided fate.

With a grunt the bear launched himself through the whitish flood. On the flanks of the flashing host he dived, swimming sinuously and with extraordinary swiftness like a seal. Rising gradually toward the surface, he struck this way and that, with wide jaws and armed fore paws, among the crowded ranks of the salmon. His object was to kill, kill, kill, before the opportunity passed by, in order that there should be many dead fish to drift ashore and be picked up at his leisure.

After a minute or two of this savage work, which turned the thronged tide crimson all about him, he came to the surface for breath. The upper ranks of the salmon were still flashing on every side, and half-leaping out of water within the very sweep of his deadly paw, heedless of his presence. His hunger being fierce upon him, he now seized a good-sized fish, bit its backbone through to put an end to its troublesome struggling, and devoured it as he swam along slowly with the host.

Suddenly, not a dozen feet ahead of his nose, a huge salmon seemed to be lifted horizontally almost clear of the water. It writhed and thrashed for a second in a sort of convulsion, then sank with a heavy swirl. The bear stared curiously. He had never seen anything like that before. The salmon had not jumped of its own accord, that was evident. It had apparently been held up from below, firmly and steadily sustained as it struggled, for that brief space of moments. To the wild creatures anything new, anything unknown, is always either interesting or terrifying. The white bear was unacquainted with terror, but he was interested instantly. He swam toward the spot where the salmon had sunk.

The next moment something still more strange arrested him. A little to one side of the spot where the salmon had behaved so curiously, a great sharp-pointed spike of yellow horn, massive and twisted, was thrust up about three feet above the water and instantly withdrawn. Blood clung thinly in the convolutions of the horn. It was a mysterious and menacing weapon. Filled with a curiosity that was now warming into wrath, the bear made for the spot. There was something like defiance in that sudden upthrust. Moreover, it seemed that some stranger was poaching on his fishing-grounds. The bear's wrath flamed into fury in a few seconds. Unable to see down into the disturbed and discoloured tide, he dived deep, to get below the salmon and the blood, and see what manner of rival it was with which he had to deal. Whatever it was, he was going to drive it off or kill it. He would share his salmon with no one.

Meanwhile, just beneath the lowermost ranks of the horde, a big, pallid-skinned, fish-like creature was swimming slowly this way and that. Shaped something like a porpoise, with a big bluff head and tremendously powerful flukes, it belonged evidently to the great kinship of the whales. Its massive body was about fourteen feet in length. But the strange thing about it, setting it wide apart from all its cetacean kin, was a long, heavy, twisted horn or tusk, of yellow ivory, jutting straight out from its upper jaw to a length of about four feet. It was that most peculiar of all the whales, a narwhal.

From time to time this ominous shape would launch itself upward among the salmon, transfixing some of the largest fish with lightning thrusts of its tusk, and killing others by terrible, thrashing side-blows of the weapon. Sometimes it would open its great mouth and engulf the most convenient victim; but it did not seem ravenous. Its hunger was already all but glutted, and its purpose seemed to be, mainly, to kill, in order that food might still be abundant after the salmon had passed on up the river beyond his reach.

When the white bear, swimming under water outstretched like an otter, saw this threatening form, his veins ran fire. Darting downward, easily as a mink might have done, he struck the unsuspecting narwhal in the middle of the back just between the flippers. His mighty fore paws, armed with claws like knife-blades, tore two gaping wounds in the narwhal's hide, and the dark blood jetted forth. But the wounds went little below the blanket of blubber which enclosed the narwhal underneath his hide. Beyond the pain of those two tearing buffets, the great sea-beast was little the worse of them. With a surge of his tail he lunged forward, and turned furiously upon his assailant.

The bear, though rash in his arrogance and rage, was no mere headlong blunderer. Though he mistook the narwhal for some kind of gigantic seal, and therefore scorned him, he had not missed the possibilities of that long, menacing horn. He was upon his foe again in an instant, not giving him time to charge, and successfully planted another rending stroke which disabled the narwhal's right flipper. Then, however, finding that he could hold his breath no longer after such terrific exertion, he darted to the surface, and hurriedly refilled his lungs.

To regain his breath took him but a moment, and instantly aware of his peril while at the surface, he dived again to renew his attack. As he dived, either his own craft or some subtle forewarning led him to twist sharply to one side. But for this, his fighting would have ended then and there, his heart split by the thrust of that giant tusk. As it was, the mad upward rush of the narwhal missed its aim. The bear felt a couple of salmon hurled in his face. Then the horn shot past his neck; and a black mass smote him full in the chest, with a force that knocked the wind out of him, and bore him, clawing and biting passionately, back to the surface. His blows, of course, were delivered blindly, but one struck home just above the narwhal's sinister little eye, wiping it out of existence.

As the bear got his head above water, he choked and gasped, swimming high for a few seconds in the struggle to recover his breath. Realizing now to the full how dangerous an adversary he had challenged, he knew that every second he remained at the surface was a deadly peril. But, at first, the breath would not return to his buffeted lungs. With his nose high in air he gave a longing look away across the tumult of the journeying host, across the tranquil white water beyond, to the low, desolate shore with its dirty ice-cakes. For the moment, he wished himself back there. Then, as he regained his breath, and his great, bellows-like lungs resumed their function, his courage and his fighting fury also returned. The red light of battle blazed up again in his eyes, and wheeling half-about with a violence that sent the water swirling and foaming from his mighty shoulders and hurled a score of salmon upon each other's backs, he dropped his head to dive once more into the fight.

The narwhal, for his part, had fared badly in that last encounter. With one eye blinded, his head badly clawed, and the tough cartilage about his blow-holes torn deeply by his adversary's teeth, he was bewildered for the moment. But he was not daunted. His sluggish blood only boiled to a blacker fury. Never before had he met anything like serious opposition. The colossal sperm-whale, undisputed lord of the ocean, never came into these cold northern waters; and the huge, blundering whalebone whales he despised. He had transfixed and slaughtered the helpless calves of this species under the very fins of their gigantic but timorous mothers. He had pierced seals, and even, once, a walrus. Terribly armed as he was, and swift, and powerful, he had never yielded way to any other inhabitant of his cold and glimmering world.

For a few moments of agitated confusion, flurried by the pain of his wounds, he swam straight ahead, just below the salmon. Then, recovering his wits, he turned in a rage and looked about, with his one remaining eye, for the bear. At first, unable immediately to readjust his vision, he could not locate him; but presently, staring up vindictively through the straight-swimming, blue and silver ranks of the journeying fish, he saw the big white form swimming at the surface some little distance away. Up through the thronged and swirling tide he darted on a long slant, straight and swift as a hungry trout rising to a May-fly.

As the bear, with lowered head and great haunches uplifted began his dive, he felt a terrible, grinding thrust in his left flank, and it seemed as if a rock from the floor of the channel rose up and smote him, half-lifting him from the water. The narwhal, his aim confused by the blinding of one eye, had again failed to strike true. The point of his tusk had caught the bear's flank on such a slant that it did not penetrate to any vital organ, but ran up, perhaps an inch below the hide, between the outermost curve of two of the upper ribs, and reappeared a little behind the shoulder. The tremendous force of that upward rush carried the great twisted horn right through to its very base.

Having delivered what he felt must be a fatal and final blow, the narwhal at once backed downward with powerful surges of his tail, trying to withdraw his horn. But now he found himself in a deadly trap. The bear, mad with pain, and held firmly, proceeded to enwrap his adversary's whole head in a frightful embrace. Slashing, tearing, ripping, with all four desperate paws at once, he was speedily shredding the narwhal's head to fragments. With mad thrashings the narwhal struggled to break loose, but in vain. Down he sank, till he lay upon the bottom, that destroying bulk still fixed upon his head. When he felt the solid ground beneath him he bent his mighty body like a bow, and sprung it, with a force that nothing could resist. His horn tore itself free, the bear was flung loose, and he lurched to one side with a violence that threw the swimming salmon overhead into confusion and sent great surges boiling to the surface. Then, blind, shattered, and jetting blood in torrents from his gaping throat, he settled upon the bottom, writhed feebly for a few minutes, and lay still.

The bear, plunging upward through the close ranks of the salmon, began to cough hoarsely as soon as he got his head above water. It was some moments before he could do more than keep himself afloat while he regained his breath. Then he began slowly swimming round and round in a circle, still full of battle rage, but not yet able to control his lungs. At last, he felt equal to seeking a renewal of the fight. Once more he dived, expecting at any instant to feel again that grinding thrust, that resistless upward blow. Below the salmon throng he peered about through the glimmer. Far down, he made out the shape of his opponent, lying motionless on the bottom. Obviously, there was nothing more to be feared from that still bulk, which seemed to sway gently in the current. The victor returned to the surface.

Lifting his head high above the water, he scanned the whole empty, pallid world. No enemy, no possible rival, was to be seen. Weak as he was and weary, he killed two or three more of the ceaselessly passing salmon just to reassure himself. Then, with the largest prize in his jaws, he swam slowly to the rock, crawled ashore, and lay down in sullen triumph to lick his wounds.