Mercer, whose writing "makes John Grisham's thrillers seem like the work of a rank amateur" (Cleveland Plain Dealer), brings back Ariel Gold, who has struggled to recreate her life after a brutal attack wiped out her memory. It is because of her own traumatic past that the Los Angeles TV newsmagazine correspondent can't sit still when a friend is suddenly blinded by contaminated eye drops. Ariel refuses to believe that she was merely an unlucky victim of product tampering -- and she sets out with her grandfather, a spunky Southern charmer, to find answers. But when she receives a troubling letter from a woman she cannot recall, Ariel must decide: is it a message from an unremembered friend -- or a masked warning?