Twelve-year-old Ruth has always thought secrets should be good things – like presents or treats. But when she and her mum move from Egypt to Edinburgh, and she starts making friends at a daunting new school, she discovers just how dangerous some secrets can be. At home, who is the vulnerable refugee her mum is trying to help? And at school, what does the Somerfield gang have against Chris, and why is his little sister so unhappy? If Ruth is going to save her friendships and protect her mum, she will have to learn what it means to live in the light – and how to keep secrets without telling lies!