From publisher blurb: The conjurer Raxe has made a terrible error, and now a powerful devil is bound to his home, trapping him inside! The party will have to work out how to banish the devil and his minions, then free the cynean from his panic room so they can finally ask him the questions they went there for in the first place. This sidequest is the last in the Chronicle of the Gatekeepers Campaign Serial, and includes: An introduction to cyneans, huge crystalline humanoids who are masters of magic A new racial implant for cyneans, the crystalline curiosity