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Catacombs
Not yet published
Expected 31 Mar 26Beneath 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 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.
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 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.
Kindle Edition
Expected publication March 31, 2026
4 people want to read
About the author
J.C. Jarvis
19 books27 followersJ.C. Jarvis grew up in Derbyshire, England, with a lifelong fascination for history, particularly the Second World War and Tudor England.
After serving in the British Army and later working in the IT industry, he turned fully to writing, transforming a lifelong passion for history into a career as a bestselling historical fiction author.
He is best known for the Fernsby’s War Series, a sweeping World War II saga following British intelligence officer Michael Fernsby and those drawn into the hidden war of espionage, resistance, and sacrifice behind enemy lines.
The series has built a loyal international readership and is praised for its depth of research, emotional realism, and cinematic storytelling.
In addition to Fernsby’s War, Jarvis is the author of the John Howard Tudor series and the origin novel Defying the Reich, which tells the powerful early story of fan-favourite resistance heroine Mina Postner.
When not writing, J.C. continues to research obsessively, always chasing the next story buried in history’s shadows.
After serving in the British Army and later working in the IT industry, he turned fully to writing, transforming a lifelong passion for history into a career as a bestselling historical fiction author.
He is best known for the Fernsby’s War Series, a sweeping World War II saga following British intelligence officer Michael Fernsby and those drawn into the hidden war of espionage, resistance, and sacrifice behind enemy lines.
The series has built a loyal international readership and is praised for its depth of research, emotional realism, and cinematic storytelling.
In addition to Fernsby’s War, Jarvis is the author of the John Howard Tudor series and the origin novel Defying the Reich, which tells the powerful early story of fan-favourite resistance heroine Mina Postner.
When not writing, J.C. continues to research obsessively, always chasing the next story buried in history’s shadows.
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