Mallory and Miller, climbing the knotted rope, were almost opposite the top of the dam wall when the last echoes of the firing drifted away across the waters of the dam. Mallory glanced down at Miller, who shrugged as best a man can shrug when hanging on to a rope and shook his head wordlessly. Both men resumed their climb, moving even more quickly than before.
Andrea, too, had heard the shots, but had no idea what their significance might be. At that moment, he did not particularly care. His left upper arm felt as if it were burning in a fierce bright flame, his sweat-covered face reflected his pain and near-exhaustion. He was not yet, he knew, halfway up the ladder. He paused briefly, aware that the girl's grip around his neck was slipping, eased her carefully in towards the ladder, wrapped his, left arm round her waist and continued his painfully slow and dogged climb. He wasn't seeing very much now and he thought vaguely that it must be because Of the loss of blood. Oddly enough, his left arm was beginning to become numb and the pain was centring more and more on his right shoulder which all the time took the strain of their combined weights.
'Leave me!' Maria said again. 'For God's sake, leave me. You can save yourself.'
Andrea gave her a smile or what he thought was a smile and said kindly: 'You don't know what you're saying. Besides, Maria would murder me.'
'Leave me! Leave me!' She struggled and exclaimed in pain as Andrea tightened his grip. 'You're hurting me.'
'Then stop struggling,' Andrea said equably. He continued his pain-racked, slow-motion climb.
Mallory and Miller reached the longitudinal crack running across the top of the dam wall and edged swiftly along crack and rope until they were directly above the arc lights on the eaves of the guardhouse some fifty feet below: the brilliant illumination from I those lights made it very clear indeed just what had happened. The unconscious Groves and Petar, the two dead German guards, the smashed radio transceiver and, above all, the submachine gun still lying in the shattered casing of the guitar told a tale that could not be misread. Mallory moved another ten feet along the crack and peered down again: Andrea, with the girl doing her best to help by pulling on the rungs of the ladder, was now almost two-thirds of the way up, but making dreadfully slow progress of it: they'll never make it in time, Mallory thought, it is impossible that they will ever make it in time. It comes to un all, he thought tiredly, some day it's bound to come to us all: but that it should come to the indestructible Andrea pushed fatalistic acceptance beyond its limits. Such a thing was inconceivable: and the inconceivable was about to happen now.
Mallory rejoined Miller. Quickly he unhitched a rope — the knotted rope he and Miller had used to descend to the Neretva dam — secured it to the rope running above the longitudinal crack and lowered it until it touched softly on the roof of the guardhouse. He took the Luger in his hand and was about to start sliding down when the dam blew up.
The twin explosions occurred within two seconds of each other: the detonation of 3,000 pounds of high explosive should normally have produced a titanic outburst of sound, but because of the depth at which they took place, the explosions were curiously muffled, felt, almost, rather than heard. Two great columns of water soared up high above the top of the dam wall, but for what seemed an eternity of time but certainly was not more than four or five seconds, nothing appeared to happen. Then, very, very slowly, reluctantly, almost, the entire central section of the dam wall, at least eighty feet in width and right down to its base, toppled outwards into the gorge: the entire section seemed to be all still in one piece.
Andrea stopped climbing. He had heard no sound, but he felt the shuddering vibration of the ladder and he knew what had happened, what was coming. He wrapped both arms around Maria and the stanchions, pressed her close to the ladder and looked over her head. Two vertical cracks made their slow appearance on the outside of the dam wall, then the entire wall fell slowly towards them, almost as if it were hinged on its base, and then was abruptly lost to sight as countless millions of gallons of greenish-dark waters came boiling through the shattered dam wall. The sound of the crash of a thousand tons of masonry {ailing into the gorge below should have been heard miles away: but Andrea could hear nothing above the roaring of the escaping waters. He had time only to notice that the dam wall had vanished and now there Was only this mighty green torrent, curiously smooth and calm in its initial stages, then pouring down to strike the gorge beneath in a seething white maelstrom of foam before the awesome torrent was upon them. In a second of time Andrea released one hand, turned the girl's terrified face and buried it against his chest for he knew that if she should impossibly live, then that battering-ram of water, carrying with it sands and pebbles and God only knew what else, would tear the delicate skin from her face and leave her forever scarred. He ducked his own head against the fury of the coming onslaught and locked his hands together behind the ladder.
The impact of the waters drove the breath from his gasping body. Buried in this great falling crushing wall of green, Andrea fought for his life and that of the girl. The strain upon him, battered and already bruising badly from the hammer-blows of this hurtling cascade of water which seemed so venomously bent upon his instant destruction, was, even without the cruel handicap of his badly injured arm, quite fantastic. His arms, it felt, were momentarily about to be torn from their sockets, it would have been the easiest thing in the world to unclasp his hands and let kindly oblivion take the place of the agony that seemed to be tearing limbs and muscles asunder. But Andrea did not let go and Andrea did not break. Other things broke. Several of the ladder supports were torn away from the wall and it seemed that both ladder and climbers must be inevitably swept away. The ladder twisted, buckled and leaned far out from the wall so that Andrea was now as much lying beneath the ladder as hanging on to it: but still Andrea did not let go, still some remaining supports held. Then very gradually, after what seemed to the dazed Andrea an interminable period of time, the dam level dropped, the force of the water weakened, not much but just perceptibly, and Andrea started to climb again. Half a dozen times, as he changed hands on the rungs, his grip loosened and he was almost torn away: half a dozen times his teeth bared in the agony of effort, the great hands clamped tight and he impossibly retained his grip. After almost a minute of this titanic struggle he finally won clear of the worst of the water and could breathe again. He looked at the girl in his arms. The blonde hair was plastered over her ashen cheeks, the incongruously dark eyelashes closed. The ravine seemed almost full to the top of its precipitously-sided walls with this whitely boiling torrent of water sweeping everything before it, its roar, as it thundered down the gorge with a speed faster than that of an express train, a continuous series of explosions, an insane and banshee shrieking of sound.
Almost thirty seconds elapsed from the time of the blowing up of the dam until Mallory could bring himself to move again. He did not know why he should have been held in thrall for so long. He told himself, rationalizing, that it was because of the hypnotic spectacle of the dramatic fall in the level of the dam coupled with the sight of that great gorge filled almost to the top with those whitely seething waters: but, without admitting it to himself, he knew it was more than that, he knew he could not accept the realization that Andrea and Maria had been swept to their deaths, for Mallory did not know that at that instant Andrea, completely spent and no longer knowing what he was doing, was vainly trying to negotiate the last few steps of the ladder to the top of the dam. Mallory seized the rope and slid down recklessly, ignoring or not feeling the burning of the skin on the palms of his hands, his mind irrationally filled with murder — irrationally, because it was he who had triggered the explosion that had taken Andrea to his death.
And then, as his feet touched the roof of the guardhouse, he saw the ghost — the ghosts, rather — as the heads of Andrea and a clearly unconscious Maria appeared at the top of the ladder. Andrea, Mallory noticed, did not seem to be able to go any further. He had a hand on the top rung, and was making convulsive, jerking movements, but making no progress at all. Andrea, Mallory knew, was finished.
Mallory was not the only one who had seen Andrea and the girl. The captain of the guard and one of his men were staring in stupefaction over the awesome scene of destruction, but a second guard had whirled round, caught sight of Andrea's head and brought up his machine-pistol. Mallory, still clinging to the rope, had no time to bring his Luger to bear and release the safety catch and Andrea should have assuredly died then: but Reynolds had already catapulted himself forward in a desperate dive and brought down the gun in the precise instant that the guard opened fire. Reynolds died instantaneously. The guard died two seconds later. Mallory lined up the still smoking barrel of his Luger on the captain and the guard. 'Drop those guns,' he said.
They dropped their guns. Mallory and Miller swung down from the guardhouse roof, and while Miller covered the Germans with his guns, Mallory ran quickly across to the ladder, reached down a hand and helped the unconscious girl and the swaying Andrea to safety. He looked at Andrea's exhausted, blood-flecked face, at the flayed skin on his hands, at the left sleeve saturated in blood and said severely: 'And where the hell have you been?'
