Twenty-fours hours later the brig lay to off the north-west shore of an island within sight of the Spanish coast.She had been specially chosen for her shallow keel and light mastage, so that she might lie at anchor in safety half a league away from the reefs that secure the island from approach in this direction.If fishing vessels or the people on the island caught sight of the brig, they were scarcely likely to feel suspicious of her at once; and besides, it was easy to give a reason for her presence without delay.Montriveau hoisted the flag of the United States before they came in sight of the island, and the crew of the vessel were all American sailors, who spoke nothing but English.
One of M.de Montriveau's companions took the men ashore in the ship's longboat, and made them so drunk at an inn in the little town that they could not talk.Then he gave out that the brig was manned by treasure-seekers, a gang of men whose hobby was well known in the United States; indeed, some Spanish writer had written a history of them.The presence of the brig among the reefs was now sufficiently explained.The owners of the vessel, according to the self-styled boatswain's mate, were looking for the wreck of a galleon which foundered thereabouts in 1778 with a cargo of treasure from Mexico.The people at the inn and the authorities asked no more questions.
Armand, and the devoted friends who were helping him in his difficult enterprise, were all from the first of the opinion that there was no hope of rescuing or carrying off Sister Theresa by force or stratagem from the side of the little town.Wherefore these bold spirits, with one accord, determined to take the bull by the horns.They would make a way to the convent at the most seemingly inaccessible point; like General Lamarque, at the storming of Capri, they would conquer Nature.The cliff at the end of the island, a sheer block of granite, afforded even less hold than the rock of Capri.So it seemed at least to Montriveau, who had taken part in that incredible exploit, while the nuns in his eyes were much more redoubtable than Sir Hudson Lowe.To raise a hubbub over carrying off the Duchess would cover them with confusion.They might as well set siege to the town and convent, like pirates, and leave not a single soul to tell of their victory.So for them their expedition wore but two aspects.There should be a conflagration and a feat of arms that should dismay all Europe, while the motives of the crime remained unknown; or, on the other hand, a mysterious, aerial descent which should persuade the nuns that the Devil himself had paid them a visit.They had decided upon the latter course in the secret council held before they left Paris, and subsequently everything had been done to insure the success of an expedition which promised some real excitement to jaded spirits weary of Paris and its pleasures.
An extremely light pirogue, made at Marseilles on a Malayan model, enabled them to cross the reef, until the rocks rose from out of the water.Then two cables of iron wire were fastened several feet apart between one rock and another.These wire ropes slanted upwards and downwards in opposite directions, so that baskets of iron wire could travel to and fro along them; and in this manner the rocks were covered with a system of baskets and wire-cables, not unlike the filaments which a certain species of spider weaves about a tree.The Chinese, an essentially imitative people, were the first to take a lesson from the work of instinct.Fragile as these bridges were, they were always ready for use; high waves and the caprices of the sea could not throw them out of working order; the ropes hung just sufficiently slack, so as to present to the breakers that particular curve discovered by Cachin, the immortal creator of the harbour at Cherbourg.Against this cunningly devised line the angry surge is powerless; the law of that curve was a secret wrested from Nature by that faculty of observation in which nearly all human genius consists.
M.de Montriveau's companions were alone on board the vessel, and out of sight of every human eye.No one from the deck of a passing vessel could have discovered either the brig hidden among the reefs, or the men at work among the rocks; they lay below the ordinary range of the most powerful telescope.Eleven days were spent in preparation, before the Thirteen, with all their infernal power, could reach the foot of the cliffs.The body of the rock rose up straight from the sea to a height of thirty fathoms.Any attempt to climb the sheer wall of granite seemed impossible; a mouse might as well try to creep up the slippery sides of a plain china vase.Still there was a cleft, a straight line of fissure so fortunately placed that large blocks of wood could be wedged firmly into it at a distance of about a foot apart.Into these blocks the daring workers drove iron cramps, specially made for the purpose, with a broad iron bracket at the outer end, through which a hole had been drilled.Each bracket carried a light deal board which corresponded with a notch made in a pole that reached to the top of the cliffs, and was firmly planted in the beach at their feet.With ingenuity worthy of these men who found nothing impossible, one of their number, a skilled mathematician, had calculated the angle from which the steps must start; so that from the middle they rose gradually, like the sticks of a fan, to the top of the cliff, and descended in the same fashion to its base.That miraculously light, yet perfectly firm, staircase cost them twenty-two days of toil.Alittle tinder and the surf of the sea would destroy all trace of it forever in a single night.A betrayal of the secret was impossible; and all search for the violators of the convent was doomed to failure.