Your writing drew me in; this is great! You really pinned down the tone, flavor, and specific mechanics of a fairy tale adventure. (I'm a huge Dolmenwood fan, so of course it reminds me of that. Also reminds me of the Sepulchre of Seven, if you've heard of that one!)
The Healing Pool mechanic is great, and the Greenrook Grimoire is one of my favorite cursed items thus far, especially with the easier method for destroying it also requiring the sacrifice of the healing pool. The characters are wonderful.
The formatting could use work, but the writing is strong enough that I'd never recommend taking a Winter's Daughter bullet-point approach; that could actually ruin it! Mostly just things like breaking up the bigger paragraphs a bit, using column layouts, adding minimaps where needed, and (once the jam is complete) even expanding the page limit to let the current writing breathe a bit more with those tweaks. Usability at the table is the only real stumbling block that I found here. Again, though, I think the writing on display is wonderful, crafted with great care and accuracy. I love the adventure, and want to run it!
And props to the artist, the cover is 100% perfect for the adventure. I aIso agree with GiantBrain that the map should be at the front, forever and always!