However, it did not happen so, and there is comparatively little satisfaction in describing all the melancholy scraps of what was marvellously beautiful. I have nothing to say about them which is not said as fully in the guide-books. There is, however, something which more piques my interest in the narrow tongue of land parting the Lucrine Lake from the sea. There is, or was, a causeway here so ancient that even the Greeks, who settled at Cumæ so many centuries before our era, did not know who built it; and being in the dark about the matter, put down the construction to no less a person than the god Hercules, who made it, they declared, for the passage of the oxen which he had taken from Geryon, the monster whom he slew in Gades. It was no small work, even for Hercules. The dam was eight stadia long, nearly a mile, made of large stone slabs laid with such skill that they withstood the sea for many centuries. Who could have been the builders of this dam in days so ancient that even the Greek settlers did not know its origin? Rome was not in those days. There were factories and traders on the coast,--Phoenicians perhaps. But why guess about a question so impossible to solve? The curiosity of the thing is worth noting; for the age of civilisation on these coasts is very great. At this spot beside the Lucrine Lake, where the sea is lapping slowly, almost stealthily, on the one hand, and the diminished waters of the lake lie still and reedy on the other, one memory, more than any other, haunts my mind. It cannot have been far from this very spot, certainly in sight of it, that there stood in old Roman days the villa of the Empress Agrippina, mother of the Emperor Nero, and it was at Baiæ, lying just across the blue curved bay, that he planned her murder, as soon as he discovered that she loved power, like himself, and stood in the way of certain schemes on which he set great store. The fleet which lay at Capo Miseno, the great naval station of those days, was commanded by one Anicetus, a freedman, who, being of an ingenious mechanical turn of mind, devised a ship of a sort likely to prove useful to any tyrant anxious to speed his friends into the nether world without suspicion. It had much the same aspect as other ships when viewed from without; but a careful observer of its inward parts might notice that the usual tight boltings were replaced by movable ones, which could be shot back at will, so that on a given signal the whole ship would fall to pieces. This pretty toy was of course not designed to make long voyages--it was enough if it would reach deep water.