Three‑year‑old Mopsy with a mysterious birthmark stumbles into the Evergrove in desperation. She gains gifts: healing tears, summoning supplies and calling birds and beasts. Back at Whitmore Hall, she experiences real family love for the first time. Misfortune strikes. Wrongly convicted, her family is exiled to icy Northreach. Threats lurk everywhere along the way. Mopsy keeps her magic secret and avoids over‑using it. Supported by one another, they transform barren land, unite neighbours and turn the place of banishment into a vibrant home.