With just a pencil stroke she can create magical creatures like furry-amphibians, rock giants, and gelatinous blobs. But these creatures were supposed to stay fictional-not come to life and disrupt everything.

Twelve-year-old Rose uses the creation of imaginary worlds to escape from her parents' nasty divorce and her paralyzing self-doubt. She loves to write, but can never gather enough confidence to finish her stories. Just when she thinks her life can't get any more complicated, she discovers all her imagined creatures have lept straight from the pages and into the real world. She now must find a way to get her beloved characters back to their stories before they cease to exist entirely. One of her characters isn't too happy about returning to fiction and has found a way to stay, but at the expense of the people Rose loves.

With the help of her fictional friends and her crush, Rose must finish her stories and accept every part of herself, or lose her identity and the people she cares for most.