"I loved this book. An unputdownable friendship story told in letters so vivid and immersive that I felt like joining in with the correspondence" -- Hilary McKay "The perfect novel for our anxiety-ridden times, with its thrilling plot, brave heroines and empowering message... This is simply a heavenly book that anyone 10+ will want to lose themselves in on cold, autumnal nights" * The Bookseller, Book of the Month * "Technically brilliant and consistently engaging... could well be [Sally Nicholls'] best yet" * Books for Keeps * "Immersive" * Guardian *

Sally Nicholls grew up in Stockton-on-Tees, and after school, travelled the world, working for a period at a Red Cross hospital in Japan. Sally's first novel, Ways to Live Forever, won the Waterstones Children's Book Prize and she has been shortlisted for the Guardian Children's Fiction Prize, the Costa Children's Book Award, and the Carnegie Medal, twice. She lives in Liverpool with her husband and two sons.