After getting a letter, we went to confront the Master. Gringal joined us but went ahead of us and lost to the Master. We entered through doorway in cave that was a portal to demiplane. Found cathedral where Master was, still possessing Destra’s body. Fought and managed to remove Master from Destra, leaving Master as puddle of shadows. Destroyed owl statues that Master used to hold onto his power. Gringal sacrificed himself to ensure that remaining owl statues would be destroyed and that Master would not escape. We left and destroyed the stone slab, destroying the doorway. Returned to Destra’s tree. Found that Destra had lost her memory.