The SO15 Files Books in Order

London loses its lights and electrical power, bringing the city to a sudden halt. Caught in the crisis, counterterrorism detective Jake Tanner must confront the dangers of a capital stripped of the systems its residents depend upon.

On Christmas Eve, a terrorist cell leader is found freshly killed outside his apartment. Jake Tanner's counterterrorism team investigates the circumstances and a note hidden in the victim's sock, uncovering answers that threaten an already tense holiday.

A threat of revenge reaches Jake Tanner's family, crossing the boundary he is most determined to defend. In this counterterrorism novella, protecting those closest to him becomes inseparable from confronting an opponent intent on making the conflict personal.

Jake Tanner struggles with the relentless demands of his new counterterrorism role, pursuing opponents indifferent to the damage they cause. His next adversary threatens further destruction, forcing him to confront the strain and danger of work that offers little respite.

London's streets fill with runners and spectators for the annual marathon, creating a vast public celebration. For Jake Tanner's counterterrorism world, the event instead becomes the setting for a threat that puts its crowds and festivities in danger.

A terrorist attack devastates Jake Tanner's favorite football stadium shortly after his own visit. Setting aside grief and a painful family association with the sport, he searches for the attackers before they can carry out another strike.

After a terrorist suspect kills two officers and leaves a warning, Jake Tanner's team must identify the next target. A major London landmark is threatened, but discovering which one and why becomes an urgent race against another attack.

A royal wedding raises the stakes for Jake Tanner's counterterrorism world when someone targets the bride. As public excitement and private nerves build around the ceremony, the threat transforms a celebrated occasion into a dangerous security challenge.

Facing possible job cuts in Counter Terrorism Command, Jake Tanner sees a cinema siege as a chance to prove himself. Confronting the gunman reveals the danger of an adversary prepared to sacrifice everything, including his own life.