Really enjoyed this prequel. It gives some great character insight for some of our favorite fables. My favorite one was about the Witch of the fables, since her story has always been one of the most mysterious. I also liked hearing more about Bigby Wolf. I found the stories of King Cole and the Frog Prince (the latter especially) to be terribly tragic, but that in itself can be really excellent character development. It also gave just a little more insight about King Cole, who started out the series being the flattest character in the bunch and becomes more interesting every time. I did not, however, like the story of Snow White, as it was not only predictable but a bit upsetting, since it blamed her for her the failure of her marriage instead of Charming, who had quite a hand in it.
All in all, a good read. It was hard to get into at first but a must for Fables readers.