The case was hopeful, though the gain could not be perceived in one, or two, hours; but at eight bells hardly a mile lay between the contending steamers. The first lieutenant wanted to open on the chase with the rifled gun on the top-gallant forecastle; but Somers refused permission, for while he was gaining on the Ben Ledi only in inches, he could not afford to lose feet by the recoil of the gun, until there was a better chance of hitting the mark. At two bells in the first dog watch, just as the sun was setting, the Ben Ledi doubled Frying Pan Shoals, passing close to the breakers. Then, as her people discovered a couple of vessels belonging to the blockading squadron, she sheered off, and went to the westward. These changes, with the doubt and uncertainty which prevailed on board of the Ben Ledi, had been very favorable to the Firefly, now within half a mile of her. Two vessels from the blockading fleet had started to engage in the exciting work, but they were too late to help or hinder the pursuit. Somers gave the order to fire upon the Ben Ledi, which was now endeavoring to work round to the Beach Channel. Though the darkness had settled down upon the chase, the Firefly continued the pursuit with unabated vigor. Her pilot was familiar with the channels, bars, and shoals. Shot after shot was fired at the Ben Ledi, and it was soon evident that one of them had in some way damaged her wheels, for she was rapidly losing ground. But now a battery on Oak Island suddenly opened on the Firefly. "We must end this thing," said Somers, as a shot from the fort whizzed over his head. "Yes, sir," replied the first lieutenant. "We can hardly pass that battery." "Try the hundred pounder." When the pivot gun was ready, the Firefly swung round, and the heavy piece roared out its salutation to the blockade runner. It was aimed by Tom Longstone, and the bolt struck the Ben Ledi square in the stern, breaking in her counter, and leaving her helpless on the water. The Firefly stopped her wheels. A shot from the fort crushed through her smoke-stack. The chase, completely disabled, drifted on the beach and grounded, under the guns of the battery. The Firefly now poured shell into her from every gun that could be brought to bear. In a few moments a sheet of flame rose from her, and lighted up the channel for miles around, clearly revealing to the gunners in the fort the exact position of Somers's vessel. The work had been accomplished, the Ben Ledi had been destroyed, and the Firefly hastened to escape from her dangerous locality. In coming about she poured a parting broadside into the burning steamer. As she swung round, a hail from the water was heard, and a boat containing several men was discovered. It had been carried by the tide away from the beach. The occupants were taken on board, though one of them was wounded and utterly helpless. They had no oars, and were in danger of being carried out to sea.