The Haunt is a very well-written module perfect for a spooky Halloween themed one shot or more. It gives the DM a lot of room to add lore and flavor on the fly without compromising the written lore that my party discovered and pondered over for days after. I ran it with 4 level 4 PCs and replaced one high CR encounter with a simpler one as I did not give the party an opportunity to long rest.
This module is great to run as a one-shot or even incorporate into an existing campaign. Kudos!
[5 of 5 Stars!]