You are a secret agent working for the British in Berlin. You are due to go home on leave, but you are being followed by the enemy - or your own people. A man meets you in the theater and briefs you on a plot to revive the power of Nazi Germany. You do not believe him, but you remember that one of the suspects mentioned was a senior SS officer you met while you were working as a spy in Nazi Germany. Next, you make contact with a beautiful girl who may know something. Someone tries to kill both of you.

Summoned late at night to the Bureau, Quiller attends a secret conference with the foreign secretary and a surprise defector: the Chinese ambassador to Britain. Minutes later, shots ring out and the ambassador's body is flung out onto the sidewalk of a deserted London street, riddled with bullets.

Never have Quiller's survival skills been so crucial as in the eerily prophetic mission code-named "Solitaire." When the body of the agent he was supposed to protect is discovered in the burnt wreck of a car, Quiller must unveil the truth behind rumors of a bomb threat somewhere in Europe. Posing as an international arms dealer, he infiltrates Nemesis, a group of deeply religious Euro-terrorist fanatics who follow a psychopathic and extremely intelligent leader.

In this 18th adventure in Adam Hall's epic series, eponymous agent Quiller is sent on a rogue mission to Cambodia, where chaos abounds as the deadline approaches for the United Nations-supervised elections. There is fear that Pol Pot, creator of the infamous "killing fields", will fight to return to power the murderous Communist party, known as the Khmer Rouge. Quiller's only ally is Gabrielle Bouchard, a sexy photojournalist who is waging her own personal war against the Khmer Rouge.