Some doors were meant to stay shut.

“The prisoner's information led to a sunken cathedral off the Pale Shore's eastern reef — the alleged prison of whatever the chest contains. The party nearly died. The drowned archpriest proved far more dangerous than anticipated. Maren went down once. Cael went down once. Torgun died twice and came back both times. The archpriest was destroyed by Vessa's Disintegrate, leaving a cracked stone tablet with Abyssal scripture.”