The Fury of Rachel Monette — Peter Abrahams

A woman must untangle a dark enigma that dates back to World War II in order to find her kidnapped son in this riveting international thriller from Peter Abrahams, aka Spencer Quinn, author of the Chet and Bernie Mysteries

Rachel Monette arrives home to a scene of unspeakable violence: Her French-born husband, Dan, is dead -- the victim of a savage stabbing -- and her five-year-old son is missing. A neighbor claims she saw a rabbi taking Adam away. But there are no synagogues in Williamstown.
 
The only clue is a letter Rachel finds in Dan's safety deposit box. Written in 1942, it's about the reassignment of three German soldiers to a place called Camp Siegfried in the supposedly unoccupied western part of North Africa. Convinced that the murder and abduction are related to a book Dan recently completed about German-occupied countries during World War II, Rachel travels to North Africa and then on to Israel, where a mass murderer hiding in plain sight is determined to keep the horrors of the past buried forever.