Catacombs

Beneath occupied Paris, the war is being fought in the dark.

February 1941: While German banners fly above the boulevards, a hidden world spreads beneath the city. The abandoned quarries and tunnels below Paris have been sealed, fortified, and repurposed into something far more sinister.

Prisoners are taken underground and never seen again. Trains vanish from official records. And British Intelligence believes a new German operation is being run from the shadows.

When a key contact disappears inside the Montparnasse quarries, Michael Fernsby and Unit 317 are sent into France with one objective: uncover what the Germans are hiding below Paris and extract the truth before it is buried forever.

Paris is a city under strain. Gestapo patrols tighten their grip, resistance networks are fracturing under pressure, and betrayal lurks behind every closed door. Operating blind and cut off from support, Fernsby is drawn deeper into a subterranean maze where the enemy controls the light, the exits, and the rules.

Meanwhile, Mina Postner's silence has not gone unnoticed. As the Gestapo closes in on the resistance, the cost of survival grows steeper, and the past threatens to collide with the present in ways neither side can control.

From interrogation chambers carved into limestone to vanished freight records and sealed tunnel networks, Catacombs is a tense, atmospheric descent into the hidden war beneath occupied Europe, where truth is extracted in darkness and survival depends on how much a man is willing to lose.

Catacombs is the next gripping instalment in the Fernsby's War series, perfect for readers of Alan Furst, Ken Follett, and readers who crave intelligent, historically grounded wartime thrillers.