The Mossheart's Promise

Ages 8 to 12, Grades 3 to 7

The first in a breathtaking middle grade fantasy duology about a young fairy who has always lived in her heroic grandmother’s shadow, but now must step up and embark on a quest to save her mother from the ever-creeping mold overtaking their world—from New York Times bestselling YA author Rebecca Mix.

The mold takes all.Twelve-year-old fairy Canary Mossheart knows this better than most. A few years ago, the mold took her papa, and even her famous, former-chosen-one Gran never found a cure. So when Ary's beloved mama falls ill, Ary decides it’s taken enough. Armed with only a bucket and a prayer, she sneaks out to find a magical, underground lake whose healing waters are straight out of Gran’s adventures. But when Ary gets there, the lake’s bone dry, and instead of healing waters, she finds a terrifying secret: her entire world is actually trapped inside a giant terrarium—one they were meant to leave centuries ago. Worse, Gran knew and hid the truth, dooming Ary and her generation to a dying, rotting world.Now, allied with only her doomsday-obsessed frenemy, a timid pill bug, and a particularly grumpy newt, Ary has one week to unravel the clues and find a way out of the terrarium—or they’ll be trapped for good.

About the Author

Rebecca Mix is a New York Times and Indie bestselling author of stories about messy girls, eerie magic, and hope. She spent her childhood tromping through swamps and falling out of very tall trees—which, in hindsight, explains a lot. A reluctant reader at first, she fell in love with books after joining a reading contest to spite her fourth grade nemesis. The Mossheart's Promise is her middle grade debut.