Soon after this occurrence, a large party from Cockburn's fleet landed at Havre de Grace, and, having driven away the few militia, captured and burned the town. Having accomplished this exploit, the marauders continued their way up the bay, and turning up into the Sassafras River ravaged the country on both sides of the little stream. After spreading distress far and wide over the beautiful country that borders Chesapeake Bay, the vandals returned to their ships, boasting that they had despoiled the Americans of at least seventy thousand dollars, and injured them to the amount of ten times that sum. By June, 1813, the Americans saw that something must be done to check the merciless enemy who had thus revived the cruel vandalism, which had ceased to attend civilized warfare since the middle ages. A fleet of fifteen armed gallies was fitted out to attack the frigate of Cockburn's fleet that lay nearest to Norfolk. Urged forward by long sweeps, the gunboats bore down upon the frigate, which, taken by surprise, made so feeble and irregular a response that the Americans thought they saw victory within their grasp. The gunboats chose their distance, and opened a well-directed fire upon their huge enemy, that, like a hawk attacked by a crowd of sparrows, soon turned to fly. But at this moment the wind changed, enabling two frigates which were at anchor lower down the bay to come up to the aid of their consort. The American gunboats drew off slowly, firing as they departed. This attack infused new energy into the British, and they at once began formidable preparations for an attack upon Norfolk. On the 20th of June they moved forward to the assault,--three seventy-four-gun ships, one sixty-four, four frigates, two sloops, and three transports. They were opposed by the American forces stationed on Craney Island, which commands the entrance to Norfolk Harbor. Here the Americans had thrown up earthworks, mounting two twenty-four, one eighteen, and four six pound cannon. To work this battery, one hundred sailors from the "Constellation," together with fifty marines, had been sent ashore. A large body of militia and a few soldiers of the regular army were also in camp upon the island.