Unfinished Business — David Archer

Sam had closed his latest case, and now his biggest worry was his friend Harry, who had almost died. Doctors had actually pronounced him dead, in fact, but Sam was too stubborn to let them give up and the cantankerous old man came back.

But was the case really closed? One of the perpetrators was being protected by the British government, and someone else had stepped up to replace the assassin who had been running the operation. When one of the clients from the case is kidnapped, Sam knows that it isn't really over yet.

With time running out, Sam and the team go right back into action, and this time they have no intention of letting anyone get away. They pull out all the stops and put every bit of their own hearts into putting an end to one of the most dangerous and persistent cases of their careers.