The sixteenth book in the hugely popular Peter Decker and Rina Lazarus series from New York Times bestselling author Faye Kellerman

A plane crashes in unexplained circumstances and the mystery deepens when police investigate. The owners know nothing of the four bodies found in the wreckage. So who are these unidentified passengers?

But the biggest question of all comes from a husband frantic with worry. His wife was supposed to be on the plane - but never boarded it. Why then is she still missing?

It's a riddle detective Peter Decker will have to answer quickly if he is to prevent further lives being lost in a case full of the trademark Kellerman twists and shocks.