From the Introduction: This document is the first of numerous supplements that will be produced for the Castle Triskelion megadungeon. Each may contain new monsters, new magic items, new mundane items, and new campaign specific information. In this supplement's case, the campaign specific information is new currency used by the dwarves and elves. Note that each module (segment) in the Castle Triskelion saga will note which supplements and modules are required to use it.