Good as Gold (Whatever After #14) - Sarah Mlynowski - Bog

The magic mirror has a crack and it sends Abby, Jonah, and Prince into the mixed up tale of Goldilocks and the Three Bears, and they soon find that Goldy is in need of a lot of gold to get her father out of jail, and so they find themselves negotiating between the Bears, who want honey, and Rumpelstiltskin, who just wants a friend or two--but King Ned is just plain greedy and somehow the children and Goldy's father have to escape from the king's jail, and get back to the portal to return home.