Love that you've riffed off an existing, lesser-known (at least to me!) legend.
- I think you could keep the Foghouse for a separate module and use the extra space to expand your adventure.
- I would like to see a quick rundown of the legend (maybe a short verse or poem?) and even a description of what a houla is!
- "see Center" would be more clear as "see center panel." Or better yet, give that section a name to refer to.
- Fatherfog is a horror game and I'm missing the horror in this adventure :(