A compelling and heartwarming story about a girl's determination to find out what happened to her dad and the uncertainty she faces in the days following his disappearance. From the acclaimed author of Little Bits of Sky."With a realistic background of financial insecurity and latchkey kids, this is a gripping mystery and a story of emotional resilience." - Daily Mail Luna's dad left in the middle of the night but nobody else seems worried. As the days go by, Luna tries to make sense of her dad's behaviour in the weeks before he left and, together with her sister Jade, starts looking for clues. They uncover some uncomfortable truths, and worried for their dad's safety, the two sisters set out to find him.While Jade is outgoing and optimistic, Luna finds comfort in numbers, her dreams of being an astronaut and a passion for space science that she shares with her father.A powerful look at family life, changing friendships and resilience in the face of fear and uncertainty.Also by the author:Little Bits of SkyRunning on EmptyTalking to the Moon"I absolutely love this book!" - Jacqueline Wilson about Running on Empty