Manfred! Lothar yelled and wind-milled his right arm.

The boy spun the wheel, and she came around and they went tearing back, aiming the bows at the neck of the shoal like the blade of an executioner's axe.

,slow down! Lothar flapped his hand and the trawler checked. Gently she nosed up to the narrow neck of the shoal. The water was so clear that Lothar could see the individual fish, each encapsuled in its rainbow of prismed sunlight, and beneath the dark green bulk of the rest of the shoal as dense as an iceberg.

Delicately Lothar and Manfred eased the trawler's bows into the living mass, the propeller barely turning so as not to alarm it and force it to sound. The narrow neck split before the bows, and the small pocket of fish that was the bulge detached itself. Like a sheep-dog with its flock, Lothar worked them clear, backing and turning and easing ahead as Manfred followed his hand signals.

Still too much! Lothar muttered to himself. They had separated a minute portion of the shoal from the main body, but Lothar estimated it was still well over a thousand tons even more depending on the depth of fish beneath that he could only guess at.

It was a risk, a high risk. From the corner of his eye he could see Da Silva agitatedly signalling caution, and now he whistled, squeaking with agitation. The old man was afraid of this much fish and Lothar grinned; his Yellow eyes narrowed and glittered like polished topaz as he signalled Manfred up to throwing speed and deliberately turned his back on the old man.

At five knots he checked Manfred and brought him around in a tight turn, forcing the pocket of fish to bunch up in the centre of the circle, and then as they came around the second time and the trawler passed downwind of the shoal, Lothar spun to face the stern and cupped both hands to his mouth.

Los! he bellowed. Throw her loose! The black Herero crewman standing on the stern flipped the slippery knot that held the painter of the dinghy and threw it overboard. The little wooden dinghy, with Da Silva clinging to the gunwale and still howling protests, fell away behind them, bobbing in their wake, and it pulled the end of the heavy brown net over the side with it.

As the trawler steamed in its circle about the shoal, the coarse brown mesh rasped and hissed out over the wooden rail, the cork line uncoiled like a python and streamed overside, an umbilical cord between the trawler and the dinghy.

Coming around across the wind, the line of corks, evenly spaced as beads on a string, formed a circle around the dense dark shoal and now the dinghy with Da Silva slumped in resignation was dead ahead.

Manfred balanced the wheel against the drag of the great net, making minute adjustments as he laid the trawler alongside the rocking dinghy and shut the throttle as they touched lightly. Now the net was closed, hemming in the shoal, and Da Silva scrambled up the side of the trawler with the ends of the heavy three-inch manila lines over his shoulder.

YoU'll lose your net, he howled at Lothar. Only a crazy man would close the purse on this shoal, they'll run away with your net. St Anthony and the blessed St Mark are my witnesses! But under Lothar's terse direction the Herero crewmen were already into the routine of net recovery. Two of them lifted the main cork line off Da Silva s shoulders and made it fast, while another was helping Lothar lead the purse line to the main winch.

It's my net, and my fish, Lothar grunted at him as he started the winch with a clattering roar. Get the bucky hooked on! The net was hanging seventy feet deep into the clear green water, but the bottom was open. The first and urgent task was to close it before the shoal discovered this escape.

Crouched over the winch, the muscles in his bare arms knotting and bunching beneath the tanned brown skin, Lothar was swinging his shoulders rhythmically as he brought the purse line in hand over hand around the revolving drum of the winch. The purse line running through the steel rings around the bottom of the net was closing the mouth like the drawstring of a monstrous tobacco pouch.

in the wheelhouse Manfred was using delicate touches of forward and reverse to manoeuvre the stern of the trawler away from the net and prevent it fouling the propeller, while old Da Silva had worked the dinghy out to the far side of the cork line and hooked onto it to provide extra buoyancy for the critical moment when the oversized shoal realized that it was trapped and began to panic. Working swiftly, Lothar hauled in the heavy purse line until at last the bunch of steel rings came in glistening and streaming over the side.

The net was closed, the shoal was in the bag.

With sweat running down his cheeks and soaking his shirt, Lothar leaned against the gunwale so winded that he could not speak. His long silver-white hair, heavy with sweat, streamed down over his forehead and into his eyes as he gesticulated to Da Silva.

The cork line was laid out in a neat circle on the gentle undulating swells of the cold green Benguela Current, with the bucky hooked onto the side farthest from the trawler.

But as Lothar watched it, gasping and heaving for breath, the circle of bobbing corks changed shape, elongating swiftly as the shoal felt the net for the first time and in a concerted rush pushed against it. Then the thrust was reversed as the shoal turned and rushed back, dragging the net and the dinghy with it as though it were a scrap of floating seaweed.

The power of the shoal was as irresistible as Leviathan.

By God, we've got even more than I reckoned, Lothar panted. Then, rousing himself, he flicked the wet blond hair from his eyes and ran to the wheelhouse.

The shoal was surging back and forth in the net, tossing the dinghy about lightly on the churning waters, and Lothar felt the deck of the trawler list sharply under him as the mass of fish dragged abruptly on the heavy lines.

Da Silva was right. They are going crazy, he whispered, and reached for the handle of the foghorn. He blew three sharp ringing blasts, the request for assistance, and as he ran back onto the deck he saw the other three trawlers turn and race towards him. None of them had as yet plucked up the courage to throw their own nets at the huge shoal.

Hurry! Damn you, hurry! Lothar snarled ineffectually at them, and then at his crew, All hands to dry up! His crew hesitated, hanging back, reluctant to handle that net.

Move, you black bastards! Lothar bellowed at them, setting the example by leaping to the gunwale. They had to compress the shoal, pack the tiny fish so closely as to rob them of their strength.

The net was coarse and sharp as barbed wire, but they bent to it in a row, using the roll of the hull in the low swell

to work the net in by hand, recovering a few feet with each concerted heave.

Then the shoal surged again, and all the net they had won was ripped from their hands. One of the Herero crew was too slow to let it go and the fingers of his right hand were caught in the coarse mesh. The flesh was stripped off his fingers like a glove, leaving bare white bone and raw flesh.

He screamed and clutched the maimed hand to his chest, trying to staunch the spurt of bright blood. It sprayed into his own face and ran down the sweat polished black skin of his chest and belly and soaked into his breeches.

Manfred! Lothar yelled. See to him! and he switched all his attention back to the net. The shoal was sounding, dragging one end of the cork line below the surface, and a small part of the shoal escaped over the top, spreading like dark green smoke across the bright waters.

Good riddance, Lothar muttered, but the vast bulk of the shoal was still trapped and the cork line bobbed to the surface. Again the shoal surged downwards, and this time the heavy fifty-foot trawler listed over dangerously so that the crew clutched for handholds, their faces turning ashy grey beneath their dark skin.