Uncaged Goddesses: Knight to Crimson Cage

The Crimson Cage, an infamous castle that levitates through the Material Plane, preys upon individuals of interest to the castle’s master, The Bronze Bishop. The Bronze Bishop’s motives are elusive, but calculated as he sets his sights on trapping the party in the puzzle halls of his casino domain. With no other allies, the characters realize that their only hope lies with an enigmatic strategy goddess, a set of magical rings, and a deck of playing cards.

This adventure is from the Uncaged Goddesses anthology and features the Red Knight.