'Children in peril make for gripping stories – think The Brothers Grimm and Dickens, A Series of Unfortunate Events and All the Light We Cannot See. In Sign, Colin Dray’s debut thriller, the child in question is Sam, a young boy recovering from an operation to remove a cancer from his throat, leaving him mute. His father, Donald, shot through to Perth a while ago, so Sam lives with his younger sister, adorable and lively Katie, and mum, Joanne, in pre-mobile-phone Sydney. His father’s sister, eccentric Aunt Dettie, has been of steadfast practical and emotional help through the separation and Sam’s illness.' (Introduction)