Billie Bright's family is pretty big, especially for one that's got somebody missing. There's Billie who is eleven and then there are her three big brothers and her Dad. Life is loud but Billie likes it, even without her mum there anymore. But with a new school comes having to make new friends, and at home it feels like all her brothers are keeping secrets. When she decides to do a project on her mum, she ends up finding out all kinds of things she doesn't expect to...