"Jane is incredibly plain. Everyone says so: her parents, the villagers, and her horrible cousin who kicks her out of her own house. Determined to get some semblance of independence, Jane prepares to propose to the princely Peter, who might just say yes to get away from his father. It's a good plan! Or it would've been, if he wasn't kidnapped by a mermaid. With her last shot at happiness lost in the deep blue sea, Jane must venture to the world underwater...

"'Robin? Robin? Robin?! Where are you?' She couldn't have gone far... Right? Princesses don't run away to have their own adventures. Princesses stay quietly and obediently at home. They would never want mermaids and swamps and pirates and getting kidnapped to be a part of their lives. Not this princess! Adventures await when Robin (bored of princess-ing all the time) embarks on the best adventure of her life--meeting friends along the way as she travels...

Determined to run away from her home in the Valley, an area controlled by the tyrannical Night Coats, Alidade stumbles upon a magical hideaway that belongs to the long-lost peacekeepers known as the Mapmakers, and accidentally brings to life a magical creature who is meant to protect the Valley.