Adler-Olsen delivers an electrifying follow-up to his "New York Times"-bestselling debut, "The Keeper of Lost Causes." Morck is back. He's settled into Department Q and is ready to take on another cold case. This time, it's the brutal double-murder of a brother and sister two decades earlier.

Jussi Adler-Olsen is Denmark's #1 crime writer and a New York Times bestselling author. His books, including the Department Q series, routinely top the bestseller lists in Europe and have sold more than fifteen million copies around the world. His many prestigious Nordic crime-writing awards include the Glass Key Award, also won by Henning Mankell, Jo Nesbø, Stieg Larsson, and Peter Høeg.