not a demon and stops being afraid. He directs Kreutz's attention to the Crystal, then trips the alchemist and grabs the gem, heading for the door. Kreutz throws some explosive powder at Peter, who drops the Crystal in agony and escapes over the rooftops of Kraków. Tempted by the realization that the Crystal is the chrysopoeia he and Tring have been ardently seeking, Kreutz steals the Tarnov Crystal before anyone figures what has happened. When he tries to use the Crystal, however, Kreutz realized that it only makes him think of his own desires. He realized, then, that it can only reflect back the gazer's own subconscious knowledge, and therefore will not reveal the secret of chrysopoeia unless he himself has all the pieces stored somewhere in his head. The Broken Note Andrew teaches Joseph the Heynał, realizing that he may be attacked by seekers of the Crystal and that someone must be left to trumpet the song on the hour. While in the tower one evening, Andrew and Joseph are attacked and held captive by Peter and his band. Peter demands to be led to the location of the Crystal (which neither Andrew nor Joseph knows), but first orders Joseph to trumpet the Heynał since it is two o'clock and its absence will be noticed. Thinking quickly, Joseph plays the Hejnał the entire way through, not stopping at the broken note. Elżbietka, lying awake in her apartment waiting to hear the Heynał, realizes the finished tune is a sign and rushes to Jan Kanty's cell. Kanty calls the night watchmen to his aid and heads for the church tower, where they surprise the bandits and free Andrew. Peter, meanwhile, notices the troop of watchmen and flees the city. The Great Tarnov Crystal Much later, Kreutz finally gives in to temptation and reveals the Great Tarnov Crystal to Johann Tring. Tring is giddy with excitement and instructs Kreutz to gaze into the crystal. The alchemist, however, is tired from his numerous trances. Despite his faint protests, Tring makes him go into a trance by making him stare into the depths of the gemstone. In it his thoughts arrange themselves into a strange order, and he reads in the stone what Tring believes to be the formula for the changing brass into gold, but what is in actuality the formula for a niter-based explosive. When Tring mixes the ingredients together, the