An Amazon Charts and #1 Wall Street Journal bestselling series. They're hunting a killer so silent, so invisible, that his unspeakable crimes are the only proof he exists. A car submerged in a remote pond. The bodies of two girls strapped into their seats. The mystery of their mother, vanished without a trace, leads Gwen Proctor and Kezia Claremont into dangerous territory. On the surface, Gwen's life is good--two...