And here we resume our survey of the castle, setting forth towards the Keep from within the Gate-House, which is itself situated within the Barbican. We proceed eastwards to the gateway (No. 2 in plan), which admits us to the second or inner baly. From this we approach the entrance to the Keep, and pass between the Edwardian flanking towers with their octagonal fronts (No. 3 in the plan): thus we reach the grand old Norman arch, De Vesci’s work, massive and deeply recessed, rich with zig-zags and bands of sharp indentations, which forms the main entrance to the innermost court or ward of the Keep itself. Immediately adjoining the Norman archway is the draw-well constructed by the first Percy. Now we have before us the new Corridor, carried round a part of the court on piers and corbels. We pass the inner porches, and the entrance-halls, and reach the Grand Staircase (No. 5 in plan), worthily so called, and we find that we have entered such a palace as might overlook, not the Aln, but the Tiber. At the head of the noble flight of steps, each one of them a single block of white Rothbury stone, twelve feet in length, is the Guard-Chamber, with its floor of rich Venetian mosaic, its panelled ceiling, and the deep frieze reflecting the memories of Chevy Chase. Corridors lead to both the right hand and the left from the Guard-Room; and it also gives access to a gorgeous Ante-Room, placed between the great Library, 54 feet long, which occupies the entire range of the Prudhoe Tower, and follows its contour; and the Saloon, another magnificent apartment, in length 42 feet with a bay formed by a circular tower. Next succeeds the State Drawing-Room, of irregular form, its largest measurements being 46 by 34 feet. Then we enter the grand Dining-Hall, 60 feet long, and in both width and height 24 feet, which covers the site of the old baronial hall of the early Percies. The Breakfast-Room adjoins this most princely hall, and, passing it, the Corridor leads us in succession to the State Bed-Rooms and Dressing-Rooms, and to the private apartments of the duke and duchess, together with other staircases. Thus, on the principal floor there are two staircases besides the grand staircase, and eighteen chambers, exclusive of the chapel. The Chapel (No. 12 in plan), of which we give a view from the outer baly, is a building of great beauty and interest, having a stone-vaulted ceiling within a roof of a high pitch, a semi-octagonal apsidal end towards the south-west, and lancet windows: its total length is 46 feet, and in the interior it is enriched with Italian mosaic, after the manner of the Henry III. work in the Confessor’s Chapel in Westminster Abbey. We must be content, in a single brief sentence (the space at our disposal restricts us absolutely to one such sentence), to state concerning every apartment in the grand range of the entire circuit of the Keep, and also in the southern wing, which