This was by and far a terrible book. So here is my spoiler full review. Ye be warned (in comments to prevent non consensual spoiling)
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This last point happens over and over. The curse that made people animals was lifted (Leon ugly 
) even though it wasn't an issue that needed to be resolved. In fact, most of the issues that were resolved were issues just made in this book, not tying up loose ends from the rest of the series. Ikol's character is inconsistent and provides no challenge to overcome.
Finally, the sudden addition of a concept that stone keepers have specializations seems out of place. Overall, the ideas and direction of the story were confused, and after so many years of waiting I am disappointed that it has come to this.