After firing for about three hours, the American squadron drew off. Little had been accomplished, for the stone walls and fortresses of Tripoli were not to be damaged very greatly by marine artillery. The Americans themselves had suffered seriously. Their killed and wounded amounted to eighteen men. They had lost one gunboat by an explosion, and all the vessels had suffered somewhat from the Tripolitan fire. That night the Americans were gladdened by the arrival of the frigate "John Adams," bringing letters and news from home. She brought also the information that re-enforcements were coming. Accordingly Preble determined to defer any further attack upon Tripoli until the arrival of the expected vessels. In the mean time he had several interviews with the Bashaw upon the subject of peace; but, as the Turk would not relinquish his claim of five hundred dollars ransom for each captive in his hands, no settlement was reached. While waiting for the re-enforcements, Preble continued his preparations for another attack. The ships were put into fighting trim, munition hauled over, and repeated and thorough reconnoissances of the enemy's works made. It was while on the latter duty, that the brig "Argus" narrowly escaped destruction. With Preble on board, she stood into the harbor, and was just coming about before one of the batteries, when a heavy shot raked her bottom, cutting several planks half through. Had the shot been an inch higher, it would have sunk the brig. By the 24th of August, Preble's patience was exhausted; and, without waiting longer for the expected squadron, he began an attack upon the town. On the night of the 24th, a few shells were thrown into Tripoli, but did little damage. Four days later, a more determined attack was made, in which every vessel in the squadron took part. Two of the enemy's gunboats were sunk; but with this exception little material damage was done, though the Americans chose the most advantageous positions, and fired fast and well. It was becoming evident that men-of-war were no match for stone walls. During this engagement, the American fleet came within range of the Bashaw's palace, and the flying shot and shell drove that dignitary and his suite to a bomb-proof dungeon. One heavy shot flew in at the window of the cell in which Capt. Bainbridge was confined, and striking the wall, brought down stones and mortar upon him as he lay in bed, so that he was seriously bruised. But the American captain was in no way daunted, and the next day wrote in sympathetic ink to Preble, telling him to keep up his fire, for the Tripolitans were greatly harassed by it.