Lookouts on the Guerrière reported to Decatur that a despatch-boat had left Gibraltar as soon as the American ships appeared, and inquiry led the captain to believe the boat was bearing messages to Reis Hammida. Other boats were sailing for Algiers, and Decatur, realizing the ease with which his wily opponent, thoroughly familiar with the inland sea, would be able to elude him, decided to give chase at once.
The fleet headed up the Mediterranean June 15th, under full sail. The next evening ships were seen near shore, and Decatur ordered the frigate Macedonian and two brigs to overhaul them. Early the following morning, when the fleet was about twenty miles out from Cape Gata, Captain Gordon, of the frigate Constellation, sighted a big vessel flying the flag of Algiers, and signaled "An enemy to the southeast."
Decatur saw that the strange ship had a good start of his fleet, and was within thirty hours' run of Algiers. He suspected that her captain might not have detected the fleet as American, and ordered the Constellation back to her position abeam of his flag-ship, gave directions to try to conceal the identity of his squadron, and stole up on the stranger. The latter was seen to be a frigate, lying to under small sail, as if waiting for some message from the African shore near at hand. One of the commanders asked permission to give chase, but Decatur signaled back "Do nothing to excite suspicion."
The Moorish frigate held her position near shore while the American ships drew closer. When they were about a mile distant a quartermaster on the Constellation, by mistake, hoisted a United States flag. To cover this blunder the other ships were immediately ordered to fly English flags. But the crew of the Moorish frigate had seen the flag on the Constellation, and instantly swarmed out on the yard-arms, and had the sails set for flight. They were splendid seamen, and almost immediately the frigate was leaping under all her canvas for Algiers. The Americans were busy too. The rigging of each ship was filled with sailors, working out on the yards, the decks rang with commands, and messages were signaled from the flag-ship to the captains. Decatur crowded on all sail, fearing that the Algerine frigate might escape him in the night or seek refuge in some friendly harbor, and the American squadron raced along at top speed, just as the Barbary pirates had earlier chased after the little brig Edwin, of Salem.
Soon the Constellation, which was to the south of the fleet and so nearest to the Moorish frigate, opened fire and sent several shots on board the enemy. The latter immediately came about, and headed northeast, as if making for the port of Carthagena. The Americans also tacked, and gained by this manœuvre, the sloop Ontario cutting across the Moor's course, and the Guerrière being brought close enough for musketry fire.
As the flag-ship came to close quarters the Moors opened fire, wounding several men, but Decatur waited until his ship cleared the enemy's yard-arms, when he ordered a broadside. The crew of the Algerine frigate, which was the Mashuda, were mowed down by this heavy fire. Reis Hammida himself had already been wounded by one of the first shots from the Constellation. He had, however, insisted on continuing to give orders from a couch on the quarter-deck, but a shot from the first broadside killed him. The Guerrière's gun crews loaded and fired again before the first smoke had cleared; at this second broadside one of her largest guns exploded, killing three men, wounding seventeen, and splintering the spar-deck.
The Moors made no sign of surrender, but Decatur, seeing that there were too few left to fight, and not wishing to pour another broadside into them, sailed past, and took a position just out of range. The Algerines immediately tried to run before him. In doing this the big Mashuda was brought directly against the little eighteen-gun American brig Epervier, commanded by John Downes. Instead of sailing away Downes placed his brig under the Moor's cabin ports, and by backing and filling escaped colliding with the frigate while he fired his small broadsides at her. This running fire, lasting for twenty-five minutes, finished the Moor's resistance, and the frigate surrendered.
The flag-ship, the Guerrière, now took charge of the Algerine prize, and Decatur sent an officer, two midshipmen, and a crew on board her. The Mashuda was a sorry sight, many of her men killed or wounded, and her decks splintered by the American broadsides. The prisoners were transferred to the other ships, and orders were given to the prize-crew to take the captured frigate to the port of Carthagena, under escort of the Macedonian.
Before this was done, however, Decatur signaled all the officers to meet on his flag-ship. In the cabin they found a table covered with captured Moorish weapons,—daggers, pistols, scimitars, and yataghans. Decatur turned to Commandant Downes, who had handled the small Epervier so skilfully. "As you were fortunate in obtaining a favorable position and maintained it so handsomely, you shall have the first choice of these weapons," he said. Downes chose, and then each of the other officers selected a trophy of the victory. That evening the squadron, leaving the Mashuda in charge of the Macedonian, resumed its hunt for other ships belonging to the navy of the piratical Dey.
The fleet was arriving off Cape Palos on June 19th when a brig was seen, looking suspiciously like an Algerine craft. When the Americans set sail toward her, the stranger ran away. Soon she came to shoal water, and the frigates had to leave the chase to the light-draught Epervier, Spark, Torch, and Spitfire. These followed and opened fire. The strange brig returned several shots, and was then run aground by her crew on the coast between the watch-towers of Estacio and Albufera, which had been built long before for the purpose of protecting fishermen and peasants from the raids of pirates. The strangers took to their small boats. One of these was sunk by a shot. The Americans then boarded the ship, which was the Algerine twenty-two-gun brig Estedio, and captured eighty-three prisoners. The brig was floated off the shoals and sent with a prize-crew into the Spanish port of Carthagena.