Prelude

While traveling through Fal Aran, you are summoned to one of the city's main banking houses. The messenger tells you nothing other than they need someone of the highest discretion for a delicate matter.

As you are led into the bank vault, you are greeted by a distraught man in his middle years, looking distinctly panicked.

You have to help us, Guardian. One of our customers has recently managed to wrongly withdraw his very large collateral. Those funds were supposed to be locked! If the people find out, our reputation will be ruined...

— Bank Owner

You look around. This isn't your usual kind of work, but if this bank failed, it would cause panic in the city. Plus, you're intrigued by how someone managed to discover a loophole in such complex security…