This is a terrifying thriller, written by Henning Mankell, a Swedish mystery writer. The book is the first featuring Linda Wallander, his main character's daughter, as a police officer, and I hope he plans on writing more. The author asks at the beginning, what if one man had survived the Jonestown massacre in Guyana in 1978, and proceeds to follow that man. The plot is exciting and escalates fast into frightening, with ritual murder and sacrifice, disappearances of Linda's two best friends. Underneath, and effectively communicated, is the theme that religion can be a force for either good or evil, and it is a most powerful tool for manipulating people. This is evident all the time in the news, when countries go to war or terrorists commit mass murder, it's always "God is on our side," and who can argue with that? Religious fervor in the wrong hands can result in the worst atrocities. The book finishes on Linda's first official day of work, Sept. 11, 2001.