The final gripping thriller in the bestselling "Missing" sequence, from the author of "Girl Missing". Six years have passed since the end of "Sister, Missing" and Madison is now a teenager. During a visit to older sister Lauren, she learns that their biological father was an anonymous sperm donor and sets out to track him down. But will she like what she finds? Sophie McKenzie is a multiple award-winning author who has twice been longlisted for the Carnegie Medal and her latest title will not disappoint fans.