Zally Guevara always knows where she's going. She has a passion for maps of all kinds and can't wait to pack her suitcase and explore the world. But Zally doesn't have to wait to get her wish. With the help of a cup of magical cocoa from her grandmother, she travels to a place that only girls training to become fairy godmothers can get to -- the enchanted dreamland of Aventurine, a place that has no map.
In Aventurine, Zally is given her quest: to save a fairy queen who has lost her will to live. Zally's companions are a young fairy with a broken wing, and a stallion prince. The trio's journey proves to be even more challenging than they could have imagined as they meet monsters and get lost in a ruined fairy city. All the while, Zally is making a map of Aventurine and discovering that she has a talent, passed down from generations of women in her family: understanding the thoughts of animals. But will this be enough to save the fairy queen and ensure that Zally can continue her fairy-godmother training?