Neither Vane nor Carroll, nor any of those who assisted them, had any clear recollection of what they did. Somehow they reached the boulder; somehow they plied axe or iron-hooked peevie, while the unstable, foam-lapped platform rocked beneath their feet. Every movement entailed a peril no one could calculate, but they savagely toiled on. When Vane began to swing a hammer above a drill, or whom he got it from, he did not know, any more than he remembered when he had torn off and thrown away his jacket, though the sticks of giant-powder, which had been in his pocket, lay close by upon the stone. Sparks sprang from the drill which Carroll held and fell among the coils of snaky fuse; but that did not trouble either, and it was only when Vane was breathless that he changed places with his companion. About them, bowed figures that breathed in stertorous gasps grappled desperately with grinding, smashing logs. Sometimes they were forced up in harsh distinctness by a dazzling glare; sometimes they faded into blurred shadows as the pulsating flame upon the bank sank a little or was momentarily blown aside; but all the while gorged veins rose on bronzed foreheads and toil-hardened muscles were taxed to the uttermost. At last, when a trunk rolled beneath him, Carroll missed a stroke and realised with a shock of dismay that it was not the drill he had brought his hammer down upon. "I couldn't help it," he gasped. "Where did I hit you?" "Get on," Vane said hoarsely. "I can hold the drill." Carroll struck for a few more minutes, after which he flung down the hammer and inserted the giant-powder into the holes sunk in the stone. Next he lighted the fuse; and, warning the others, they hastily recrossed the dangerous bridge. They had reached the edge of the forest when a flash sprang up amidst the foam and a sharp crash was followed by a deafening, drawn-out uproar. Rending, grinding, smashing, the jamb broke up, hammered upon the partly shattered boulder, and carrying it away or driving over it washed in tremendous ruin down the rapid. When the wild clamour had subsided, Salter gave the men some instructions, and then as they approached the lamp noticed Vane's reddened hand. "That looks a nasty smash; you want to get it seen to," he remarked. "I'll get it dressed at the settlement; we'll make an early start to-morrow," said Vane. "We were lucky in breaking the jamb; but you'll have the same trouble over again any time a heavy flood brings down an unusual quantity of driftwood." "It's what I'd expect," agreed Salter. "Then something will have to be done to prevent it. I'll go into the matter when I reach the city." Carroll and Vane walked back to the shack, where the former bound up his comrade's injured hand, and, after a rest, left the mine early next morning. Vane got his hand dressed when they reached the little mining town at the head of the railroad, and on the following day they arrived in Vancouver. CHAPTER XXI VANE YIELDS A POINT.