I Will Find You by Harlan Coben: A Thriller Hardback

In this breathtaking thriller from a New York Times bestselling author, an innocent father serving life for the murder of his own son receives evidence that his child may still be alive--and must break out of prison to find out the truth.
David Burroughs was once a devoted father to his three-year-old son Matthew, living a dream life just a short drive away from the working-class suburb where he and his wife, Cheryl, first fell in love--until one fateful night when David woke to discover Matthew had been murdered while David was asleep just down the hall.
Half a decade later, David's been wrongly accused and convicted of the murder, left to serve out his time in a maximum-security prison--a fate which, grieving and wracked with guilt, David didn't have the will to fight. The world has moved on without him. Then Cheryl's younger sister, Rachel, makes a surprise appearance during visiting hours bearing a strange photograph ...