A city in darkness. A disgraced hero with a personal mission. The second novel by screenwriter Fredrik T. Olsson is a gripping thriller about the fragile technology that runs our modern lives. One evening just before Christmas, Stockholm is plunged into a sudden, citywide blackout. Radio, internet, phone service--all goes out simultaneously, cloaking the city in darkness and silence. Soon, key targets across Europe are enduring these sustained cyber attacks. In an eerily quiet newsroom, journalist Christina Sandberg tries to piece together what's happening.

She has a terrible feeling that, somehow, her ex-husband--William--is involved. On the pitch-black streets, their estranged daughter Sara carries a message for William--perhaps the key to reversing the blackout and preventing further attacks. But someone is determined to stop her from delivering her message. Immediately before the blackout, code breaker and cyber-security expert William Sandberg received an anonymous email. Unfortunately, his former colleagues in the state military police are very aware of this correspondence and bring him in for questioning--just when he most needs to be out working to find the sender and so clear his name. Fredrik Olsson returns with the perfect thriller for summer, taking the breakneck pace and heart-pounding action that distinguished his debut novel to the next shocking level.