Really love the theme of this, excellent use of folklore throughout. The "body swap if you say the name three times" is a great idea with a lot of potential for chaos. Pixbees are wonderful.
Agree with others that are a few issues that affect ease of use, e.g. font size, mixup with 9 and 10 and the Banshee being referred to without being in the list of Denizens. I think you could probably shorten / condense some of the info on the first page to give yourself a bit more space to describe the Regions in a larger font (esp. the Trials).
I also have mixed feelings about the use of colour to identify creatures, it's obviously great thematically but makes it a bit trickier to follow - I'd like the visual link to be stronger, e.g. maybe incorporate a small icon for each creature, or have the denizen-descriptions positioned nearer the relevant locations, if possible (although appreciate that'd involve messing with the layout quite a lot!).
I do want to emphasise though that in spite of these fairly minor issues this is definitely one of my favourite entries so far, will definitely look for and play the updated version!