Really appreciate the representation of what must be a very underrepresented mythology. As a result of the choice to cover this material things feel very unique. In fact, the entire premise feels otherworldly and so appropriately - Fairy Tale.
I suppose if anything there's a decent amount of work to do here for a Guide as they would need to study this pamphlet first and answer a few questions for themselves. I'd have liked to hear about how this Foghouse provides for visitors but the Three Sisters themselves are super intriguing as well as the overall image you've painted of the Foghouse itself.
I think what I want to praise most is in the execution of a very mythical premise that can still involved players. When gods are competing in sport down a mountain one could imagine that being difficult to get four other people involved in but I really like the challenge as presented. That finale is likely to be super memorable.