The secret expedition was met by Nelson just as he started for the West Indies. During his heavy beat down the Mediterranean he too, as carefully as Napoleon, had been studying the field on which he was to act; but while the one planned with all the freedom and certainty of an offensive, which, disposing of large means, moves upon a known object, the other, though in a restricted sphere, underwent the embarrassments of the defensive, ignorant where the blow was to fall. One clear light, however, shone step by step on his path,—wherever the French fleet was gone there should he go also.

The west wind which delayed his progress brought swiftly to him, on April 19, a vessel [201] from Gibraltar, with word that, two hours after Villeneuve passed the Straits, a frigate had started for England with the news, and that the French and Spaniards had sailed together from Cadiz. From this circumstance he reasoned, accurately, that the destination was the British Islands; [202] but he did not penetrate the deep design of a concentration in the West Indies. He therefore sent the frigate "Amazon" ahead of the fleet to Lisbon, to gather news and rejoin him off Cape St. Vincent; and by her he wrote the Admiralty, and also to the admirals off Brest and in Ireland, that he should take position fifty leagues west of the Scilly Islands, and thence steer slowly toward them. To any person who will plot this position on a map it will be apparent that, with winds prevailing from the westward, he would there be, as he said, equally well situated to reach Brest or Ireland; in short, in an excellent strategic position known to the authorities at home.

Stopping but four hours at Gibraltar on May 6, on the 9th he was off Cape St. Vincent, and there received news that the combined squadrons, to the number of eighteen of the line, had gone to the West Indies. His concern was great, for he fully understood the value of those islands. He had served there, knew them intimately, and had married there. Not a year before he had written, "If our islands should fall, England would be so clamorous for peace that we should humble ourselves." [203] Still, with all his anxiety, he kept his head. The convoy of troops was close at hand, he must provide for its safety. On the 11th of May it arrived, Nelson's fleet being then under way. To the two ships-of-the-line guarding it he added a third, the "Royal Sovereign," whose bad sailing delayed him; and to this circumstance it was owing that that ship, newly coppered, bore Collingwood's flag far in advance of either British column into the fire at Trafalgar. Three hours after the convoy's junction, at 7 P. M.of May 11, Nelson with ten ships was on his way to the West Indies, to seek eighteen which had thirty-one days' start.

On the 4th of June the British fleet, having gained eight days on the allies, anchored at Barbadoes, where it found Cochrane with two sail-of-the-line. The same day Magon with his two joined Villeneuve. In the three weeks the latter had now been in Martinique he had accomplished nothing but the capture of Diamond Rock, a small islet detached from the main island, which the British held and from which they annoyed the coasters. A frigate outstripping Magon had brought pressing orders to make conquests in the British possessions, during the thirty-five days of waiting for Ganteaume. In consequence, when Magon joined, the fleet was under way, standing north to clear the islands before making the stretch to the southward, and to windward, to reach Barbadoes; which Villeneuve had selected as his first point of attack.

On the 4th of June, therefore, the two hostile fleets were but a hundred miles apart, the distance separating Barbadoes from Martinique. Most singularly, at the very moment Villeneuve started north to return upon Barbadoes, false news, too plausible to be slighted, induced Nelson to go south. Positive information was sent by the officer commanding at Santa Lucia that the allies had been seen from there, May 29, steering south. Nelson anchored at Barbadoes at 5 P. M. June 4, embarked two thousand troops during the night, and at 10 A. M. next day made sail for the southward. On the 6th he passed Tobago, which was reported safe, and on the 7th anchored off Trinidad; where to the astonishment of every one nothing had been heard of the enemy. Cursing the news which had forced him to disregard his own judgment, when only a hundred miles of fair wind severed him from his prey, Nelson turned upon his tracks and steered for Martinique, tortured with fears for Jamaica and every exposed British possession.

On the 8th of June, when Nelson left Trinidad, the combined fleets were nearly four hundred miles from him, off the west side of Antigua. Here they captured fourteen merchant ships which had imprudently left port, and by them were informed that Nelson with fourteen ships (instead of ten) had reached Barbadoes. To these fourteen, Villeneuve, whose information was poor, added five as the force of Cochrane, making nineteen to his eighteen. Supposing therefore the enemy to be superior, not only in quality, which he conceded, but in numbers also, he decided, in view of so unexpected an event as the arrival on the scene of the greatest British admiral, to return at once to Europe. In this he doubtless met the wishes of Napoleon. "I think," said the latter, ere he knew the fact, "that the arrival of Nelson may lead Villeneuve to return to Europe;" [204] and he argued, still seeing things as he wished,—certainly not as a seaman would,—"When Nelson learns Villeneuve has left the Windward Islands, he will go to Jamaica," [205] a thousand miles to leeward. "So far from being infallible like the Pope," wrote Nelson at the same moment, "I believe my opinions to be very fallible, and therefore I may be mistaken that the enemy's fleet is gone to Europe; but I cannot bring myself to think otherwise." [206] Then, having given his reasons, he seems to dive into Napoleon's mind and read his thoughts. "The enemy will not give me credit for quitting the West Indies for this month to come." [207]

Villeneuve also doubtless hoped to shake off his pursuer by his sudden change of purpose. Transferring troops necessary to garrison the French islands to four frigates, he directed the latter to land them at Guadaloupe and rejoin him off the Azores,—a mistaken rendezvous, which materially lengthened his backward voyage. The combined fleet then made sail on the 9th of June to the northward, to reach the westerly winds that favor the passage to Europe.

Three days later Nelson also was off Antigua, and convinced himself that the allies were bound back to Europe. With the tireless energy that brooked no rest when once resolve was formed, the night was passed transferring the troops which but one week before he had embarked at Barbadoes. But not even a night's delay was allowed in sending news to Europe. At 8 P. M. he hurried off the brig "Curieux" with dispatches to the Admiralty, which the captain, Bettesworth, was to deliver in person; a momentous action, and one fraught with decisive consequences to the campaign, although somewhat marred by an overcautious admiral. On the 13th, at noon, the fleet itself, accompanied by one of Cochrane's two ships, the "Spartiate," sailed for the Straits of Gibraltar; but Nelson, uncertain as to the enemy's destination, also sent word to the officer commanding off Ferrol, [208] lest he might be taken unawares.

Although Villeneuve's decision to return was fortunate and characterized by the extraordinary good luck which upon the whole had so far attended him, it is evident that he ran the chance of crossing Ganteaume on the Atlantic, as he himself had been crossed by Missiessy. Napoleon had taken precautions to insure both his waiting long enough, and also his return in case Ganteaume could not get away by a certain time; but not having foreseen, nor until June 28 [209] even known, Nelson's pursuit of Villeneuve, he could not anticipate the course of the latter in such a contingency, nor combine with it the action of the Brest fleet.