The west wall of the great chamber contains two windows similar to the other side—save that they do not descend to the floor, but begin about 8 feet up, so as not to interfere with the forebuilding outside. North of these windows, in the part of the north-west turret which abutted on the north curtain, is a door of 3 feet opening, and 8 feet or 10 feet high. This is the cross section of a mural passage leading from the great chamber. Close south of it, in the west wall, and above the similar door on the ground floor, a small round-headed door leads into the garderobe turret. The other opening in the west wall is at its south end, and is the main entrance to the keep. It is a plain doorway of 6 feet opening, with a flat, segmental head beneath a full-centred arch of relief. The passage has a segmental barrel vault. It goes direct through the curtain, here 12 feet thick. It has no portcullis. In the south wall of the passage a side door opens into the south-west turret. This also had an original upper chamber, but below the entrance or first-floor level it was filled with earth; this has been removed, and the lower part fitted up, and windows opened in the south wall, and a rude door at the base, but the rough character of the masonry shows that the turret was originally filled up to the first-floor level. Dudley’s alterations converted the interior of this turret into five tier of rooms, the windows of which are seen in the south wall. It is said also to have been fitted up as a staircase. The great chamber had an open roof, the holes for the joists of which are seen in the southern wall. The pitch was low, almost flat, as is shown by the original weather-moulding in the east and west walls, which has been masqued by a thin interior facing, carrying a moulding for a roof of a rather higher pitch, all which, however, has disappeared under the recent repairs. This is different from Porchester, Rochester, and Bridgenorth, where the original pitch was steep. On the outside, above the windows, but much below the base of the parapet, is seen a row of loops, square-headed, with a plain chamfer, expanded below into a broad fantail. There are three of these in the south wall and two in the east and west, and each turret has besides one on each of its two outer faces. The turret loops are at a higher level, and this shows that the turrets themselves stood clear above the curtains. These apertures are curious. The loop ascended in the wall and opened in the base of the parapet beneath a flat, three-centred arch. The loops are probably original, but the parapet seems to have been rebuilt, either when the pitch of the roof was altered or in Dudley’s time. The walls are covered with ivy and in a dangerous condition, so that even with the aid of long ladders their upper part is not very accessible. There are traces of doorways opening from the rampart walk into the upper parts of the turrets, the floors of which were of timber.