Quiller Solitaire

An agent who had asked Quiller for help is murdered, and Quiller insists on taking on the mission to avenge his fellow agent's death. However, Quiller's assignment turns into a more sinister and much larger mission, as Quiller infiltrates a Euro-terrorist organization with plans for mass murder. From London to Germany to the Sahara Desert and beyond, Quiller must keep his cover identity while trying to stop a major massacre. "Quiller is in peak form in Adam Hall's QUILLER SOLITAIRE." - The New York Times