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 for if they failed in the first attack, their next care was to escape.

The walls were always too strong to be shaken by such desultory hostilities; the windows were too narrow to be entered, and the battlements too high to be scaled. The only danger was at the gates, over which the wall was built with a square cavity, not unlike a chimney, continued to the top. Through this hollow the defendants let fall stones upon those who attempted to break the gate, and poured down water, perhaps scalding water, if the attack was made with fire. The castle of was secured by double doors, of which the outer was an iron grate.

In every castle is a well and a dungeon. The use of the well is evident. The dungeon is a deep subterraneous cavity, walled on the sides, and arched on the top, into which the descent is through a narrow door,