Darkest fear - Harlan Coben

Myron never saw it coming. A surprise visit from an ex-girlfriend is unsettling enough. But Emily Downing's news brings him to his knees. Her son Jeremy is dying and needs a bone-marrow transplant - from a donor who vanished without a trace. Then comes the real shock: the boy is Myron's son, conceived the night before her wedding to another man.

Stunned by the news, Myron plunges into a desperate search for the missing donor. But finding him means unravelling a dark mystery that involves a broken family, a brutal kidnapping spree, and the FBI. Somewhere in the sordid mess is the donor who disappeared. And as doubts emerge about Jeremy's true paternity, a child vanishes, igniting a chain reaction of heartbreaking truth and chilling revelation.