Visually stunning homage to the Appendix N theme of the jam! Artwork, fonts, graphic design are all beautiful.
I like the way you kept the look of a book cover but didn’t waste space, with the Water Weird behind the front cover tear and the premise of the adventure formatted like the blurb on the back cover of a pulp paperback. Very inventive.
The adventure is fairly well explained, but a couple of things were not clear to me. It seems that the pilgrims arrive one-at-a-time in a random order? I didn’t understand the significance of the three staircases or the purpose of the diagram with the squares and circles and arrows.
I can imagine this would be fun to play, with plenty of opportuunity for role-playing as well as combat, with the consequences hanging on the players’ actions.