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Breakdown: A Post-Apocalyptic Mystery Thriller Set Inside Humanity’s Last Refuge
A post-apocalyptic thriller set in a bunker beneath the Arizona desert, where a reluctant investigator enters a billionaire pleasure palace plagued by suspicious deaths. A dystopian murder mystery with secret tunnels, custom drugs, forced happiness, and a killer hiding among the last survivors on Earth.
Jake Holloway is not a detective.
He’s a bartender who survived the end of the world.
Six months after a devastating world war turned the surface into a toxic wasteland, Jake is trying to stay sane inside a luxury bunker that feels more like a prison.
After solving a brutal murder in Bunker One, he and his companions are drawn deeper into the hidden underground network, travelling through secret tunnels that connect the last refuges of humanity.
Their Bunker Eleven.
A billionaire pleasure palace of endless parties, forced smiles, and custom drugs designed to keep its residents happy, obedient, and numb.
But people are dying.
The owner insists the deaths are suicides.
Jake isn’t convinced.
Then someone tries to kill him.
Surrounded by suspects and trapped in a society where every smile is chemically manufactured, Jake must uncover who is behind the deaths before the body count rises again.
The world above is poisoned.
The danger below is human.
Breakdown is Book Two in Sean McLachlan’s Bunker series, a dark dystopian thriller for readers who love Hugh Howey, Blake Crouch, sealed societies, psychological control, and deadly secrets underground.
Jake Holloway is not a detective.
He’s a bartender who survived the end of the world.
Six months after a devastating world war turned the surface into a toxic wasteland, Jake is trying to stay sane inside a luxury bunker that feels more like a prison.
After solving a brutal murder in Bunker One, he and his companions are drawn deeper into the hidden underground network, travelling through secret tunnels that connect the last refuges of humanity.
Their Bunker Eleven.
A billionaire pleasure palace of endless parties, forced smiles, and custom drugs designed to keep its residents happy, obedient, and numb.
But people are dying.
The owner insists the deaths are suicides.
Jake isn’t convinced.
Then someone tries to kill him.
Surrounded by suspects and trapped in a society where every smile is chemically manufactured, Jake must uncover who is behind the deaths before the body count rises again.
The world above is poisoned.
The danger below is human.
Breakdown is Book Two in Sean McLachlan’s Bunker series, a dark dystopian thriller for readers who love Hugh Howey, Blake Crouch, sealed societies, psychological control, and deadly secrets underground.
241 pages, Kindle Edition
Published August 26, 2026
About the author
Sean McLachlan
97 books114 followersSean McLachlan is a former archaeologist who worked for many years on excavations in the Middle East, Europe, and the United States. Now a full-time writer, he specializes in fiction, history, and adventure travel. In 2013 he won the Lowell Thomas Travel Journalism Award for his Iraq reportage.
Half of Sean's time is spent on the road researching and writing. He's traveled to more than 30 countries, interviewing nomads in Somaliland, climbing to clifftop monasteries in Ethiopia, studying Crusader castles in Syria, and exploring caves in his favorite state of Missouri.
Sean works in a number of genres, especially historical mystery and science fiction.
Sean is always happy to hear from his readers, so drop him a line via his blog!
Half of Sean's time is spent on the road researching and writing. He's traveled to more than 30 countries, interviewing nomads in Somaliland, climbing to clifftop monasteries in Ethiopia, studying Crusader castles in Syria, and exploring caves in his favorite state of Missouri.
Sean works in a number of genres, especially historical mystery and science fiction.
Sean is always happy to hear from his readers, so drop him a line via his blog!
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