Andrew Britton Books in Order
Browse Andrew Britton books in order, including the Ryan Kealey thrillers, with quick summaries, series notes, and clear advice on where to start reading.
Last updated: July 1, 2026
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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 protΓ©gΓ© 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.
Where should I start?
If you want the true starting point: The American β The Assassin β The Invisible
If you want the core Ryan Kealey rivalry: The American β The Assassin
If you like globe-spanning crisis plots: The Invisible β The Exile β The Courier
If you want the later run of the series: The Operative β The Courier β Threatcon Delta
Author bio
Andrew Britton was born Andrew Paul Britton in Peterborough, England, on January 6, 1981, and spent part of his childhood between England and Camlough, Northern Ireland. When he was seven, his family moved to the United States, and he grew up first in Grand Rapids, Michigan, then in Raleigh, North Carolina.
After graduating from Leesville Road High School in 1999, he joined the U.S. Army and served as a combat engineer, including time in Korea. When his service ended, he went on to study economics and psychology at the University of North Carolina at Chapel Hill. Somewhere in the middle of all that, he started writing the book that would become The American.
He did not take the slow route into publishing.
Britton wrote his debut while he was still very young, and he kept the project mostly to himself until it sold. He later said that what he loved most about writing was building characters, creating lives from nothing, and blending fiction with real-world detail. That helps explain why his novels feel packed with military procedure, intelligence work, and current-events pressure, yet still move like thrillers instead of textbooks.
The American introduced Ryan Kealey, a former Special Forces soldier and CIA operative pulled back into the field to hunt Jason March, a former protΓ©gΓ© turned assassin. The Assassin widened the scope with Baghdad, New York, and betrayal close to home. The Invisible pushed the series into a Pakistan-India crisis and a high-stakes kidnapping, while The Exile carried the story into Sudan and the politics of revenge. Readers who click with Britton usually come for that mix of fast action, geopolitical danger, and a hero who is capable but never untouched by the work.
The books tend to circle the same anxieties, terrorism, intelligence failure, institutional betrayal, and the personal cost of living in crisis mode for too long. Kealey is always looking for a way out, but the plots keep shoving him back toward the next emergency. That wear and tear is part of what gives the series its edge.
Research mattered to him. Britton said nothing annoyed him more than a thriller that had not been properly researched, and he put real effort into getting the military and intelligence details right. In early 2007 he returned to Camlough to finish The Invisible and dedicated the book to his maternal grandmother, Eunice Britton, a small but telling link between his global fiction and his family roots.
He liked the bad guys, too.
In his own comments about the series, Britton singled out villains like Jason March and Yasmin Raseen as characters he enjoyed writing. He also talked about growing up on Jack Higgins and admiring writers such as John le Carre, Daniel Silva, David Baldacci, John Sandford, Michael Connelly, and Thomas Harris. The Ryan Kealey series later continued with books like The Operative, The Courier, and Threatcon Delta, all working in the same world of secret wars, unstable alliances, and hard decisions made under pressure.
Britton died suddenly in Durham, North Carolina, on March 18, 2008, at only 27, from an undiagnosed heart condition. It was a very early end to a career that had only just begun. Even so, the series continued from work he had left behind, and his name still tends to bring up the same response from thriller readers: he wrote fast, serious spy fiction, and he was gone far too soon.
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