Lost Asset (Penumbra Division #4)

Lost Asset (Penumbra Division #4) by Sam Cogley is a Thriller release out on September 14, 2026.

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Lost Asset (Penumbra Division #4)

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Lost Asset (Penumbra Division #4) Release Date: September 14, 2026

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The Cold War Made John Bishop a Legend. Now Europe’s Deadliest Terror Attack Drags Him Back into the Field for a War He Was Never Built to Fight.

Madrid, March 2004. John Bishop is decades removed from the field, a Cold War spymaster who belongs behind a desk. But when he boards a packed commuter train with his most trusted assistant at his side, the morning ends in fire, twisted steel, and one hundred ninety-three people dead.

The bombing wasn’t the work of terrorists alone. The explosives trace back to a shadowy arms dealer known only as the Gray Ghost—a phantom who runs his empire like a resistance cell, supplying terror to anyone who can meet his price. Those who get close to his supply chain find only dead ends. Those who get closer don’t come back at all.

As director of the CIA’s most classified unit—Penumbra Division—Bishop should leave the hunt to younger operatives. But this one is personal, and he won’t hand it to anyone else. From the streets of Madrid to the back alleys of Casablanca, Bishop follows a trail that grows more devastating with every step.

As the ghosts of the Cold War collide with the War on Terror, can an old spy in a young man’s war prevent a nightmare of his own making before it’s too late?

If you devour the pulse-pounding espionage thrillers of Tom Clancy, Robert Ludlum, Daniel Silva, Vince Flynn, and Brad Thor, then prepare for Sam Cogley’s biggest yet—LOST ASSET.

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Genre: Thriller

Sam Cogley

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