XII
A Traitor in the Castle—He Deserts to the Enemy—How the Count Received Him— His Interview with Luke—Amabel's Enterprise Betrayed—Luke Suggests a Trick—The Keep the Last Hope of the Garrison—How Its Defenses Were Prepared—The Attack Slackens—The Friar's Wonderful "Seeing Tube"—An Inventor in His Laboratory—A Message from Edgar—The Count's Letter—Lady Mortimer's Anxiety—The Friar Detects the Fraud—A Devotee of the "White Art,"
