The Warsaw Quartet

Former chief investigator Jan Kalisz lives a dangerous double life, forced to work with the occupiers as he gathers information for the fledgling Polish resistance. Even his family cannot be told his true allegiance. When the niece of a Wehrmacht general is found terribly mutilated, Jan links the murder to other killings that are of less interest to his new overlords. Soon, he finds himself on the trail of a psychopathic killer known as The Artist. But, shunned as a Nazi collaborator, can he solve the case before another innocent girl is taken?

In the ghetto, the last 50,000 Jews await their fate, but, unlike those who preceded them to the death camps, these Jews are prepared to fight. Jan Kalisz, Kripo investigator and Resistance double-agent, has promised to supply them with weapons. But how will he fulfil his vow? The murder of a German officer appears to provide an opportunity.

Christmas Day 1943, Arisaig, Scotland. The body of beautiful, well-connected Polish SOE agent Krystina Kowolska is found in the gardens of the country house where she's been preparing for a vital mission to France. The question is, was she already dead when she was hanged? Two days later, resistance double agent, Investigator Jan Kalisz of the Warsaw Kripo is flown to Britain where Winston Churchill himself tasks him with finding Krystina's killer, before the cracks in Britain's alliance with Poland become fractures.

The time for deception is over. Jan Kalisz must choose: fight for his country’s freedom, or save his family. June 1944. When a Wehrmacht war crimes investigator and his escort are killed in an ambush, it looks like an opportunistic act of revenge by the Polish Resistance. But Jan Kalisz of the...