*Winner of the Overall Waterstones Children's Book Prize**Blackwells Children's Book of the Year**An instant New York Times bestseller!*Embark on an unforgettable adventure through the Greenwild, in this enchanting fantasy with an environmental twist. Pari Thomson's award-winning magical trilogy begins with Greenwild: The World Behind the Door, with stunning illustrations throughout by Elisa Paganelli.'This book was absolute perfection' - 5 star reader review'This is one of the best middle grades I've ever read' - 5 star reader reviewOpen the door to a spellbinding world where the wilderness is alive and a deep magic rises from the earth itself . . .Daisy Thistledown has escaped from boarding school and has a mystery to solve. Her search for her missing mother will lead her across London and through a hidden doorway to another world, filled with plants and bursting with magic: the Greenwild.But all is not well in this astonishing land. Before long Daisy finds herself confronting a dangerous presence that threatens green magic on both sides of the door. Daisy must band together with a botanical genius, a boy who can talk to animals, and a cat with an attitude, to channel the power that can revive the Greenwild and find her missing mother - and save her own world too.Continue the magic with The City Beyond the Sea and The Forest in the Sky. *Shortlisted for the Books Are My Bag Readers Award**Longlisted for the Yoto Carnegie Medal for Writing**The Times Children's Book of the Week*'A cornucopia of wonder' - The Guardian'An eco-thriller novel every child should read' - The Telegraph'Greenwild is a thrilling adventure that takes seed in your imagination and runs wild!' - M. G. Leonard, author of Beetle Boy'I adored this book!' - Aisling Fowler, author of Fireborn