"In the penultimate thriller of the New York Times and #1 internationally bestselling Department Q series, the team must hunt for a nefarious serial killer who has slipped under the radar for decades. On her sixtieth birthday, a woman commits suicide. When the case lands on Detective Carl Mørck's desk, he can't imagine what this has to do with Department Q, Copenhagen's cold cases division. It's a tragedy to be sure, but the cause of death seems...

"The newspaper refers to her only as Victim 2117-the two thousand one hundred and seventeenth refugee to die in the Mediterranean Sea. But to three people, the unnamed victim is so much more, and the death sets off a chain of events that throws Department Q, Copenhagen's cold cases division led by Detective Carl Mørck, into a deeply dangerous-and deeply personal-case. A case that not only reveals dark secrets about the past, but has deadly implications...