From within this gateway, which is flanked by two octagonal towers, one of them—the Warder’s Tower—larger and loftier than the other, the curtain-wall of the first Lord Percy’s work leads in a direct line nearly due west; we follow the course of this wall, we pass through the middle gate-house, erected by the first of the Percies, which both separates and connects the inner and the outer baly; again, on our left, we have early Norman masonry in the curtain, and then we reach the Auditor’s Tower (No. 30 in plan), another relic of the first Lord Percy: here was held the court of the lord of the barony; here now is the private Library of the Duke; and here also is the Museum of Egyptian Antiquities, collected by Duke Algernon, the last munificent restorer of Alnwick. Still following the line of the curtain, we reach the Clock Tower. From this tower, the curtain, built in the last century, leads in a northerly direction to the entrance gateway connected with the Barbican, to which, thus completing our entire circuit, we now return, having passed, since leaving the Clock Tower, the Avener’s Tower or Garner (No. 32 of plan), like the adjoining curtain, a modern work. During our progress from the garden gate (No. 29 in plan) westward and northward to the Barbican, we have passed the long ranges of new buildings that either adjoin or actually abut upon the outer face of the curtain-walls (Nos. 16 to 21 in plan), by no means unimportant parts of the latest restoration, which comprise all the domestic offices and the whole stable department of the castle. These buildings, which have been planned and constructed with the highest architectural and engineering skill, are on a scale of princely magnitude; and of them it may truly be said that they leave nothing to be desired. Of one only of these new edifices is it necessary that we should make particular mention; this is No. 19 on the plan, a noble apartment, covered with an open timber hammer-beam roof. In consequence of there being in the restored castle no such baronial hall as invariably formed the principal feature in a great mediæval stronghold, Duke Algernon built this Guest Hall in its stead, which might enable himself and his successors to assemble his and their tenantry and friends to partake of the always splendid hospitality of the Percies. This hall has also been used for concerts and various other purposes. [Illustration: _The Well in the Keep._]