Otto Fischer, a severely wounded Luftwaffe officer and former criminal investigator, is summoned to solve a seemingly incomprehensible case: the murder of a leading rocket engineer during a devastating air raid. With only days until the SS assume control of the production of a remarkable new weapon, Fischer must find a motive and perpetrator from among several thousand scientists, technicians, soldiers and forced laborers. As he struggles to get the measure of a secretive, brilliant world in which imagination moves far beyond the limits of technology, what at first appears to be a solitary crime draws him into a labyrinth of conspiracy, betrayal and treason.McDermott brings skills previously honed whilst producing well-researched history books to the discipline of writing fiction, creating work that is historically accurate and evocative as well as stylish in a literary sense.