When Isabella's friend disappears, she volunteers to guide the search party. As a mapmaker's daughter, she's equipped with elaborate ink maps and knowledge of the stars, eager to navigate the island's forgotten heart. But beneath the mountains a legendary fire demon awakens, and her journey is fraught with danger ... Winner of the Waterstones Children's Book Prize & the British Book Awards Children's Book of the Year 'Absolutelyloved it from start to finish' TOM FLETCHER 'I read it, I loved it' MALORIE BLACKMAN 'Kiran Millwood Hargrave creates a spellbinding world of magic, myth and adventure' EMMA CARROLL Forbidden to leave her island, Isabella dreams of the faraway lands her cartographer father once mapped. When her friend disappears, she volunteers to guide the search. The world beyond the walls is a monster-filled wasteland - and beneath the dry rivers and smoking mountains, a fire demon is stirring from its sleep. Soon, following her map, her heart and an ancient myth, Isabella discovers the true end of her journey: to save the island itself.