I think the coolest feature is the sheer number of entry points into the mystery. Investigate a cursed mountain town with a haunted temple, a sewer full of invasive predators, and a sinister magical factory. Get involved in local family dramas. Interact with sad ghosts, an old man who keeps challenging you to duels, or a girl with a secret identity. They all have clues, and they’re all related – but it might not be clear how until the end.
I originally wrote it as a starter for a longer campaign, but the central mystery is meant to fit into a Gauntlet-style 4-5 session series. I’d love some feedback from anyone who runs it with Dungeon World or any other system as I work on the next version.