Ryan Kealey Books in Order
Part ofAndrew Britton Books in OrderSee the Ryan Kealey series by Andrew Britton in order, with quick summaries, series background, reading order notes, and advice on the best place to start.
Last updated: July 1, 2026
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Ryan Kealey books in publication order
7 books
The American
by Andrew Britton
2006
After the Senate Majority Leader is assassinated in Washington, Ryan Kealey is pulled back into the world he tried to leave. Hunting former protégé Jason March, he uncovers a terror plot aimed at multiple world leaders on American soil.
The Assassin
by Andrew Britton
2007
A Baghdad bombing and a warning from an Iranian source point toward something much larger than a single attack. Ryan Kealey and Naomi Kharmai chase the plot toward New York, where a familiar enemy and a traitor inside the system are waiting.
The Invisible
by Andrew Britton
2008
As Pakistan and India edge toward crisis, twelve American climbers disappear in the Hindu Kush and the acting U.S. secretary of state is kidnapped near Islamabad. Ryan Kealey and Naomi Kharmai race through terrorism, espionage, and shifting loyalties to bring her back.
The Exile
by Andrew Britton
2010
When the U.S. president's niece is murdered in a Darfur refugee camp, any direct response could ignite a wider crisis. Ryan Kealey is pushed back into the field to uncover who staged the provocation and why.
The Operative
by Andrew Britton
2012
Ryan Kealey thinks he is finally done with covert work until a savage terror attack hits a Baltimore charity gala and kills John Harper's wife. Following the trail, he uncovers a conspiracy that reaches from government corridors into something far darker.
The Courier
by Andrew Britton
2013
A discovery in the Arctic puts a functioning nuclear weapon within reach of America's enemies. Ryan Kealey teams with young physicist Rayhan Jafari to track the bomb across borders while mistrust, sabotage, and failing intelligence threaten the mission.
Threatcon Delta
by Andrew Britton
2014
After a devastating attack in San Antonio, Ryan Kealey is pulled out of retirement to investigate a radical group claiming it can unleash plagues across the globe. The hunt leads toward the Staff of Moses and a threat with terrifying reach.
Ryan Kealey books in chronological order

The American
by Andrew Britton
2006Ryan Kealey, Book 1
The Assassin
by Andrew Britton
2007Ryan Kealey, Book 2
The Invisible
by Andrew Britton
2008Ryan Kealey, Book 3
The Exile
by Andrew Britton
2010Ryan Kealey, Book 4
The Operative
by Andrew Britton
2012Ryan Kealey, Book 5
The Courier
by Andrew Britton
2013Ryan Kealey, Book 6
Threatcon Delta
by Andrew Britton
2014Ryan Kealey, Book 7
Series background & context
The Ryan Kealey books are hard-edged political thrillers built around a man who is very good at the job he keeps trying to quit. Ryan Kealey is a former Army Special Forces officer and CIA operative, the kind of counterterrorism specialist governments call when the normal channels have failed. Across the series, he gets pulled from uneasy retirement into plots involving assassins, kidnappings, terror attacks, rogue networks, and state-level crises.
That push and pull is the real hook. In The American, Kealey is dragged back into action to hunt Jason March, a former student who has become a terrifying enemy. From there, the books widen into Baghdad, New York, Pakistan, Sudan, Baltimore, the Arctic, and the Middle East, with recurring help, pressure, and manipulation from people like Naomi Kharmai and Harper. The missions change, but the feeling stays the same: Ryan is never far from the next emergency, and trust is always in short supply.
These books move.
The setting matters because the threats are never just background decoration. A bombing in one city can rattle an election. A kidnapping near Islamabad can push Pakistan and India closer to disaster. A murder in Darfur can become an international provocation. A lost nuclear weapon or a biological threat can send Kealey and his allies racing across borders while officials back home argue, stall, or hide what they know. If you like spy fiction that treats geopolitics as part of the plot machinery, this series leans into that.
At the same time, the books do not treat Kealey like an invincible action figure. He is smart, capable, stubborn, and badly worn down by the life he has led. One of the main ongoing threads is his struggle to build anything resembling a normal life while working in a world that rewards suspicion, improvisation, and violence. His relationships, especially with Naomi and Harper, carry weight because friendship, loyalty, and even affection are constantly being tested by the job.
Kealey is always trying to leave, and the world keeps refusing to let him.
The tone lands somewhere between military thriller and intelligence thriller. There is plenty of fieldcraft, weapons knowledge, and covert action, but the series is just as interested in betrayal, divided loyalties, and the personal cost of operating in permanent crisis. Andrew Britton died in 2008, yet the Ryan Kealey line continued with later books published under his name, including The Exile, The Operative, The Courier, and Threatcon Delta. For most readers, the best approach is to start with The American and read forward, because the emotional scars, alliances, and grudges build from book to book.
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