My eyes have travelled on to the other horn of this fine bay, and are arrested by what is surely the most picturesque object in all Naples. For at this point the spine or backbone of land which breaks the present city into two, leaving on the right the ancient town and on the left the modern, built along the pretty shore of which I have just spoken,--at this point the ridge sweeps down precipitously from the Castle of St. Elmo on the height, breaks off abruptly in the sheer cliff of the Pizzo-Falcone, "The Falcon's Beak," and then sends jutting out into the sea a small craggy island which bears an old hoary castle low down by the water's edge. On this grey morning the sea breaks heavily about the black reef on which the castle stands, and the walls, darkened almost to the colour of the rock itself, assume a curious aspect of vast age, such as disposes one to seek within their girth for some at least among the secrets of old Naples. Nor will the search be vain; for this hoary fortress is Castel dell'Uovo, "The Castle of the Egg," so called, if we may lend an ear to Neapolitan tradition, because Virgil the Enchanter built it on an egg, on which it stands unto this hour, and shall stand until the egg is broken. Others again say that the islet is egg-shaped, which it is not, unless my eyes deceive me; and of other explanations I know none at all, so that any man who can content himself with neither of these may resign himself to contemplate an unsolved puzzle for as long as he may stay in Naples. Apart, however, from the wizard Virgil and the idle tale of the enchanted egg, there is something so arresting in the sight of this ancient castle thrust out into the sea that I cannot choose but see in it the heart of the interest of Naples. It is by far the oldest castle which Naples owns, and as its day came earliest so it passed the first. Castel Nuovo robbed it of its consequence, both as a royal dwelling and a place of arms; and now the noisy, feverish tide of life that beats so restlessly from east to west through the great city finds scarce an echo on the silent battlements of the Egg Castle, where Norman monarchs met their barons and royal prisoners languished in the dungeons. Inside the walls there is nothing to attract a visitor but memories. Yet those gather thick and fast as soon as one has crossed the drawbridge, and there is scarce one other spot in Naples where a man who cares for the past of the old tragic city can lose himself more easily in dreams.