Very nearly the whole both of the curtain and cross wall are gone, but the projection from the northern angle of the keep shows that the curtain, at that point at least, was about 40 feet high and at least 11 feet thick. It would seem that the curtain had originally no mural towers, for these, in the shape of half-round or segmental solid buttresses, have been added, built against the face of the curtain, the removal of which has laid bare the rough face of the applied work. Leland speaks of eleven or twelve of these buttress towers. There remain at present only six. They have all been faced with ashlar. Upon one is a good stringcourse of Perpendicular date, and on another is seen the shaft of a garderobe, the upper part of which must have been on the battlements. Two of the largest of the buttresses are placed opposite to the town, about 21 feet apart, forming a sort of solid gatehouse, and flanking the main entrance to the castle through the outer ward. The gateway was 18 feet wide and at least 18 feet high to the springing. The arch is gone. The square groove for the portcullis remains, and within is a rebate for the door. Outside in the northern jamb is a hole as for the heel of a drawbridge, but there is no corresponding hole on the other side, so that the indication is probably deceptive. A drawbridge there must have been, but it was possibly more advanced. Leland also mentions a subterranean passage opening upon the slope of the ditch, but this, of which nothing is now known, was probably a sewer. In the inner ward is the house in which are still held the courts for the Honour. This is a modern building, but it contains an original Decorated doorway, and a large fireplace, plain, but probably of the same date. There is said to have been a well near this, now lost, and local tradition describes a chapel as having stood near the courthouse. [Illustration: PLAN OF DUNGEON. ELEVATION OF KEEP FROM INNER WARD. Wyman & Sons, Gᵗ. Queen Sᵗ. London.] The principal interest of the building centres upon the King’s Tower or keep, of which the remains are considerable. It may be described as rectangular in plan, 64 feet north-west and south-east by 52 feet north-east and south-west, or nearly square. Its symmetry is, however, broken by the cutting off of the north angle. Also the whole of the eastern angle is gone, and it is a question how far out this extended, and with much of the north-east side, the whole south-east end, and the angle between them are gone, but enough of the two other sides remains to show the general plan and details of the building. [B. Fig. _a._] The western angle is capped by a cylindrical turret of solid masonry, 6 feet diameter, and, at present, 52 feet high. It was probably, together with the main building, about 10 feet higher. This was the height from the level of the inner ward; the absolute height of the keep, measured from the dungeon floor, was about 16 feet more, or about 78 feet or 80 feet.