Series information from Goodreads.

"A Tom Doherty Associates book."

"April 1944, the fifty-fifth month of the war in Europe. The entire island of Britain fairly buzzes with the coiled energy of a million men poised to leap the Channel to France, the first, riskiest step in the Allies' long slog to the heart of Germany and the end of the war. Lieutenant Eddie Harkins is tasked to investigate the murder of Helen Batcheller, an OSS analyst. Harkins is assigned a British driver, Private Pamela Lowell, to aid in his investigation. Lowell is smart, brave and resourceful; like Harkins, she is prone to speak her mind even when it doesn't help her. Soon a suspect is arrested and Harkins is ordered to stop digging. Suspicious, he continues his investigation only to find himself trapped in a web of Soviet secrets. As bombs fall, Harkins must solve the murder and reveal the spies before it is too late."-- Provided by publisher.