The new case was probably just a matrimonial. Sad, because of the girl involved, but inevitable, given the background. When private detective Frank Sterling returns to Belgium, however, things take a darker turn.

Before long, he and his ragtag team are involved in a desperate adventure. With characteristic persistence, and his usual haphazard combination of skill and intuition, Sterling uncovers a conspiracy far beyond the concerns of a jilted lover. Insurrection, murder, and betrayal are just some of the challenges to be faced and overcome…