Scarcely had Lord Exmouth reached home when he was ordered forth again to avenge this outrage, and he sailed from Plymouth on the 28th of July, 1816, with a fleet of twenty-five large and small ships. At Gibraltar he was joined by the Dutch Admiral Van Cappellan with five frigates and a sloop, to which were added a number of British gunboats. On the 27th of August Lord Exmouth sailed right into the formidable harbour of Algiers, and dispatched a messenger to the Dey, demanding instant and ample recompense for the outrage; the delivery of all Christian slaves in the kingdom of Algiers; the repayment of the money received by the Dey for the liberation of Sicilian and Sardinian slaves; the liberation of the British consul--who had been imprisoned--and of two boats' crews detained; and peace between Algiers and Holland. The messenger landed at eleven o'clock, and two hours were given the Dey to prepare his answer. The messenger remained till half-past two o'clock, and no answer arriving, he came off, and Lord Exmouth gave instant orders for the bombardment. The attack was terrible. The firing from the fleet, which was vigorously returned from the batteries in the town and on the mole, continued till nine in the evening. Then most of the Algerine batteries were knocked literally to pieces, but the firing did not cease till about eleven. No sooner was the assault over than a land wind arose and carried the fleet out of the harbour, so that the vessels were all out of gunshot by two o'clock in the morning. A wonderful spectacle then presented itself to the eyes of the spectators in the fleet. Nine Algerine frigates, a number of gunboats, the storehouses within the mole, and much of the town were in one huge blaze, and by this they could see that the batteries remained mere heaps of ruins. The next morning Lord Exmouth sent in a letter to the Dey with the offer of the previous day, saying, "If you receive this offer as you ought, you will fire three guns." They were fired. The Dey made apologies, and signed fresh treaties of peace and amity, which were not of long endurance. But within three days one thousand and eighty-three Christian slaves arrived from the interior, and were received on board and conveyed to their respective countries.