Conner Bailey thinks his fairy-tale adventures are behind him - until he discovers a mysterious clue left by the famous Brothers Grimm. With help from his classmate Bree and the outlandish Mother Goose, Conner sets off on a mission across Europe to crack a two-hundred-year-old code. Meanwhile, Alex Bailey is training to become the next Fairy Godmother ...but her attempts at granting wishes never go as planned. Will she ever be truly ready to lead...

Conner, Bree, and their friends from the Land of Stories discover that the fairytale world and the Otherworld are on a collision course that will open a portal connecting the two dimensions in New York, allowing Morina, the witches, the three literary emperors, and the literary army to enter and take over the city, but can Conner stop them and restore order to the fairytale world without the help of his twin sister Alex, who is in Morina's thrall?...

"Through the mysterious powers of a cherished book of stories, twins Alex and Conner leave their world behind and find themselves in a foreign land full of wonder and magic where they come face-to-face with the fairy tale characters they grew up reading about"--Provided by publisher.