This continues the tale of Julie, 11-year-old daughter of Rapunzel, and her "brother," Puss in Boots. Having undone the wish that brought the Wild (a fairy tale forest that forces people to act out stories again and again) into power, Julie thinks that things will go back to normal, until one of the Three Blind Mice accidentally (he's blind, after all) runs into the Wild where it's stored under her bed. But instead of growing, the Wild takes the opportunity to trade -- as the mouse enters, Rapunzel's Prince, Julie's father, is set free, and the consequences take both Julie and Rapunzel by surprise.
Tons of fairy tale characters and events, a race across the country, and a surprising foe keep this story zipping along. I admit I did get a little exasperated with the boneheadedness of one of the characters, but that part of the story doesn't last too long and I enjoyed the rest of the book.
This is aimed at younger kids, probably in the grade school range, but I also recommend the duology (start with the first one!) if you love creative mashups of fairy tales.
More information about Sarah Beth Durst's writing and fairy tale adaptations at her website: http://www.sarahbethdurst.com/