When Silva struck home the harpoons, he flung overboard a length of line coiled by his knee. This slack line would allow the whale to run free while the sail was coming down and he and the mate were changing places. He threw it overboard--and failed to mark that one loop of it caught on the point of one of the spare irons in the rack with the lances, at the bow. He leaped for the stern, groped past Mr. Ham amidships.... The whale was running. As Mr. Ham reached the bow, the line drew taut. That loop which had caught across the point of the harpoon was straightened like a flash. Now a harpoon is shaped, not like an arrow, but like a slanting blade. It has a single barb; and the forward side of this barb is razor-sharp. This razor edge cuts into the blubber and flesh; then the shank of the barb grips and holds. But the edge that will cut blubber will also cut hemp.... The loop of whale line was dragged firmly back along this three-inch blade; it cut through as though a knife had done the trick, and the whale was gone with two irons and thirty fathoms of line. Mr. Ham and his boat bobbed placidly upon the water; and Mr. Ham looked, saw what had happened, and spoke sulphurously. Then looked about to see what might be done. It was too late to think of getting fast to another whale. The pod was gallied; the great creatures were fleeing. After them went James Tichel in his boat, the spray sluicing up from her bows. Tichel was fast; the whale was running with him.... Mr. Ham looked from Tichel for the other boats. He saw Dan'l Tobey in distress. A whale had risen gently under them, opening the seams of their craft; and they were half full of water and sinking. They had cut. Willis Cox had hold of a whale; and this one had sounded. Ham saw Willis in the bow, watching the line that went straight down from the chock into the water. This line was running out like a whip-lash, though Willis put on it all the strain it would bear without dragging the boat's bow under. It ran down and down.... Mr. Ham rowed across; and Willis called to him: "Big fellow. But he's taken one tub." "Give him to me," Mr. Ham said. Willis shook his head. "I'd like to handle him. Get me the line from Mr. Tobey's boat. He's mine." Mr. Ham grinned. "All right; if you're minded to work...." He swung quickly to where Dan'l and his men floated to their waists in water, the boat under them. "Takin' a swim?" he asked, grinning. Dan'l nodded. "Just that. You cut, I see. Why was that, now?" Mr. Ham stopped grinning and looked angry. "Pass over your tubs," he ordered; and Dan'l's men obeyed. Mr. Ham took the fresh line to Willis.... He was no more than just in time. "The black devil's still going," Willis said. "Second tub's all but gone...." "Bound for hell, more'n like," Mr. Ham agreed. "Hold him."