A powerful and compassionate introduction to homelessness, and the need for kindness, understanding and friendship. No one knows who Grace is. One day, she appeared in a shop doorway in a sleeping bag, with a cat called Luna, surrounded by strange things. When Jess and her mum strike up a friendship with Grace, Jess has questions: why did she leave her home? Does she have enough to eat? And what happens when the cold weather comes?