World War II Books in Order

Greg Iles’s World War II books form a loose duology that looks at the war from two very different angles: a brutal mission inside a concentration camp and the long shadows cast by Nazi secrets into the late twentieth century. Together they show how decisions made under extreme pressure can echo across decades.

Black Cross is set in 1944, when the Allies fear Hitler may use newly developed nerve gas against the D‑Day invasion. American chemist Mark McConnell and Jewish resistance fighter Jonas Stern are recruited for a near‑suicide mission into Germany. Their task is to infiltrate the Totenhausen death camp, sabotage the gas program, and decide how many lives they are willing to sacrifice to stop an even greater horror.

Rather than focusing on battlefield heroics, the novel drops readers into the daily machinery of a camp where scientists test weapons on prisoners. Iles follows both the infiltrators and the people trapped inside—guards, doctors, and inmates whose choices are narrowed to terrible options. The tension comes as much from moral trade‑offs as it does from gunfights and explosions.

Spandau Phoenix shifts to Berlin in the late 1980s, just after the death of Rudolf Hess, the notorious Prisoner Number Seven of Spandau Prison. When young policeman Hans Apfel discovers a hidden cache of papers believed to be Hess’s secret diary, he and his wife are swept into a multi‑front pursuit involving intelligence services, neo‑Nazis, and politicians desperate to keep the past buried.

The mystery turns on what really happened when Hess flew to Britain in 1941, and what powerful people on both sides of the war might still be hiding.

Although each book stands on its own, they’re linked by recurring questions: how far ordinary people will go when caught between duty and conscience, and how easily governments can justify cruelty in the name of victory. You can read the duology in publication order—Spandau Phoenix then Black Cross—or start with Black Cross if you prefer the events of the war itself before seeing how those secrets surface decades later.