Hardly had it slipped from their hands before the Spaniards realized the tremendous blow which had been given to their power and their pride, and made desperate endeavors to recover it. The very same year they attacked it with a large army and fleet. At the beginning an attempt was made which would seem to have been conceived in the heroism of despair. The eastern side of Gibraltar terminates in a tremendous cliff, rising fourteen hundred feet above the sea, which thunders against the rocks below. This side has never been fortified, for the reason that it is so defended by nature that it needs no other defence. One would as soon think of storming El Capitan in the valley of the Yosemite as the eastern side of the Rock of Gibraltar. Yet he who has followed a Swiss guide in the Alps knows that with his cool head and agile step he will climb heights which seemed inaccessible. And so a Spanish shepherd, or goatherd, had found a path from Catalan Bay, up which he offered to lead a party to the top, and five hundred men were daring enough to follow him. They knew that the attempt was desperate, but braced up their courage by religious enthusiasm, devoting themselves to the sacrifice by taking the sacrament, and binding themselves to capture Gibraltar or perish in the attempt. In the darkness and silence of the night they crept slowly upward till a part had reached the top, and concealed themselves in St. Michael's Cave until the break of day; when with the earliest dawn they attacked the Signal Station, killing the guard, and then by ropes and ladders brought up the rest of the party. Following up the momentary success, they stormed the wall of Charles V., so called because constructed by him. But by this time the garrison had been awakened to the fact that there was an enemy within the walls. The roll of drums from below summoned the troops to arms, and soon the grenadiers came rushing up the hill. Exposed to the fire from above, many fell, but nothing could check their advance, and reaching the top they charged with such fury that half of the party that had scaled the heights soon fell, some of whom were driven over the cliff into the sea. An officer who was present during the whole of the siege tells how they made short work of it. "Five hundred Spaniards attacked the Middle Hill but were soon repulsed, and two hundred men with their commanding officer taken. The rest were killed by our shot, or in making their escape broke their necks over the rocks and precipices, which in that place are many and prodigiously high." So ended the first and last attempt to take Gibraltar in the rear. But still the Spanish army lay encamped before the town, and the siege was kept up for six months with a loss of ten thousand men. No other attack was made during that war, though the war itself raged elsewhere for seven years more, till it was closed by the treaty of Utrecht, in which Gibraltar was finally ceded to Great Britain.