While Darby was returning, La Motte Picquet had gone to sea from Brest with six ships of the line and some frigates to cruise in the approaches to the Channel. There, on the 2d of May, he fell in with the convoy returning from the West Indies with the spoils of St. Eustatius. The ships of war for the most part escaped, but La Motte Picquet carried twenty-two out of thirty merchant ships into Brest before he could be intercepted, although a detachment of eight sail sent by Darby got close upon his heels.
After a long refit, Darby put to sea again, about the 1st of August, to cover the approach of the large convoys then expected to arrive. Being greatly delayed by head winds, he had got no further than the Lizard, when news was brought him that the Franco-Spanish grand fleet, of forty-nine ships of the line, was cruising near the Scilly Isles. Having himself but thirty of the line, he put into Tor Bay on the 24th of August, and moored his squadron across the entrance to the Bay.
This appearance of the allies was a surprise to the British authorities, who saw thus unexpectedly renewed the invasion of the Channel made in 1779. Spain, mortified justly by her failure even to molest the intrusion of succours into Gibraltar, had thought to retrieve her honour by an attack upon Minorca, for which she asked the cooeperation of France. De Guichen was sent in July with nineteen ships of the line; and the combined fleets, under the chief command of the Spanish admiral, Don Luis de Cordova, convoyed the troops into the Mediterranean beyond the reach of Gibraltar cruisers. Returning thence into the Atlantic, de Cordova directed his course for the Channel, keeping far out to sea to conceal his movements. But though thus successful in reaching his ground unheralded, he made no attempt to profit by the advantage gained. The question of attacking Darby at his anchors was discussed in a council of war, at which de Guichen strongly advocated the measure; but a majority of votes decided that Great Britain would be less hurt by ruining her fleet than by intercepting the expected convoys. Even for the latter purpose, however, de Cordova could not wait. On the 5th of September he informed de Guichen that he was at liberty to return to Brest; and he himself went back to Cadiz with thirty-nine ships, nine of which were French. “This cruise of the combined fleet,” says Chevalier, “diminished the consideration of France and Spain. These two powers had made a great display of force, without producing the slightest result.” It may be mentioned here that Minorca, after a six months’ siege, capitulated in February, 1782.