"For me there are neither locks nor bolts, whatsoever I desire is mine." - The Master Thief
"The Master Thief" is the tale of a young man who is taken in by a band of robbers as their apprentice. They set the boy out to prove himself on a number of tasks, which the boy does easily using trickery. The sly boy quickly steals his way to the top and uses his skills to excel in other areas, including winning the hand of a squire's daughter.
In "Three Coins in a Fuchsbau", the Coins of Zakynthos make the holder seemingly indestructible. It can be argued that the holder of the coins can accomplish anything, much like the Master Thief. In addition, the obvious theme of robbery takes precedence in this episode. However, it seems like Nick is the only one who's not trying to get his hands on those coins for all the wrong reasons.