Herr Lazarus and the Draken

Once upon a time there was Lazarus who bought a sword with sign "With one blow I have slain forty" on it. One day he went away from the house. He wondered for a long time and found a local dweller - Draken. Draken saw the sign on Lazarus sword and invited him to live together. During the time, Lazarus did not help Draken in anything. Draken had a plan to kill Lazarus... What happened next? Read the story to know!