Magical interlinked stories about what one girl learns from talking to trees throughout Time and from around the world. Olive’s best friend is a four-hundred-year-old oak tree, and it is in danger. As she tumbles into its magic world, she makes it a promise. From deep roots to high branches, a Persian garden to an underwater forest, from tulip trees to wild apple to vengeful box, she listens to the trees telling stories for all time. And she keeps her promise. With a conservation message and facts about tree science alongside the magicand wonder of seven beautifully imagined original stories, this full-colour book enchants and reminds us of the importance of trees in our lives.