Thick clouds lay low over the dark surface of the Adrea, whose shores and waters were melted together in undistinguishable gloom; only now and then a flash of distant lightning lit up the silent city of Ravenna. At unequal intervals the wind swept through the ilexes and pines on the range of hills which rise at some distance to the west of the town, and which were once crowned by a temple of Neptune. At that time already half ruined, it has now almost completely disappeared, leaving only the most scanty traces. It was quiet on the bosky heights; only sometimes a piece of rock, loosened by storms, clattered down the stony declivity, and at last splashed into the marshy waters of the canals and ditches which belted the entire circle of the sea-fortress; or a weather-beaten slab slipped from the tabled roof of the old temple and fell breaking on to the marble steps--forebodings of the threatened fall of the whole building.