When Columbus heard these things he was much pleased. He saw in them confirmation of what he had been told about the Province of Mangon, with its men who had tails and who wore long robes to hide them. He at once sent a strongly armed party inland to seek these men and parley with them; directing them to go as much as forty miles inland, if necessary, to find them, and to find the populous cities which he confidently believed to exist in that region. These explorers readily enough traversed the open palm forest which bordered the coast. But then they came to extensive open upland plains or savannahs, with few trees but with rank grass and other herbage as high as their heads and so dense as to be almost impenetrable. No roads or paths were to be found, and it was necessary to cut a trail through the herbage. For a mile they struggled on, and then gave up the attempt and returned to the ships. The next day another party was sent in another direction, with no better results. Its members found fine open forests, abounding with grapevines laden with fruit, and they saw flocks of cranes which they described as twice the size of those of Europe. But they also saw on the ground the footprints, as they supposed, of lions and of griffins, which so alarmed them that they beat a hasty retreat. Lions, and indeed all large beasts of prey, were never known to exist in Cuba, and the griffin was of course never anything but imaginary--unless a tradition of some prehistoric monster, ages ago extinct. But huge alligators or caymans abounded in Cuban waters, and the footprints which frightened Columbus's explorers were doubtless made by them. The observation of large cranes suggests, also, an explanation of the panic-stricken archer's story of men clothed in white robes. A flock of those huge birds, standing erect and in line, with their leader advanced before them, as is their custom, in the semi-gloom of a strange forest, might well have given him the impression of a company of white-robed men. Of course, no men of that description were ever found in Cuba, nor were there traces of any.