Part four the The Staves of Warrant was very eventful. There was a ton of stuff going on and at times it got a little confusing. So many revelations came out at about the same time I had a hard time keeping them all straight (which I'm sure is exactly what Grainne felt like). Some of these revelations seemed to come from left field though and it tended to pull me out of the story a bit.
The end of the story was very interesting and I see now why some consider it a sci-fi/fantasy story. With a good ending that could really be the end if the reader chooses, it also leaves an opening for the next set of books in the series.
*This book was received in exchange for an honest review*