ghastly hole with a trap-door, opening upon a flight of steps.” From these steps a secret passage led through a small cell to a farther cell in the body of the Ballium Wall. It is possible that Scott had this tower in mind when describing the dungeon and secret passages and doors in the thirteenth chapter of the _Legend of Montrose_. The account of the one resembles very closely what we know of the other. The bowmaker lived and followed his trade within this tower, and it is named after that master craftsman, whose workshop was a busy place in the days before the bullet had ousted the arrow. The Brick Tower is chiefly of interest as having been the place to which Raleigh was moved during his first and third imprisonments. When it was found necessary to keep him in closer captivity than had been imposed on him in the Garden House and Bloody Tower, he was brought to the Brick Tower, and not to the cell in St. John’s crypt, as tradition has led many to believe. Lord Grey de Wilton died here, during his captivity, in 1617; here, also, Sir William Coventry was confined for a time in Charles II.’s time. Pepys, on his visit to Sir William, found “abundance of company with him,” and sixty coaches stood outside Tower gates “that had brought them thither.” _The Martin Tower._--This is the most famous of the lesser towers, and is also known as the old Jewel House. It, too, in part is ancient, but the building set up by Henry III. was tampered with by Wren, and has, in consequence, a somewhat patchy appearance to-day. The tower stands at the north-east corner of the Inner Wall, and beneath it lies Brass Mount battery. It is best seen from the point where we leave the public gardens and go on to the level of the Tower Bridge Approach. From this recently constructed roadway a good general view of the Tower buildings on the eastern side is obtained. But we will pause here on our walk to consider two memorable events in the history of the Martin Tower.