The Havana Syndrome

** Named One of Library Journal’s Best Books of 2025 **

When devotion and duty collide, FBI Agent Nathan Burke must uncover a global conspiracy to save his wife…and the nation.

“…pulse-pounding…a must-read…” —Library Journal

FBI Agent Nathan Burke is in the middle of a high-stakes operation to dismantle a terrorist network when his world is turned upside down—his estranged wife, Reagan, falls victim to the mysterious and debilitating Havana Syndrome. Determined to reconcile with her and find the responsible party, he teams up with his former academy classmate Meili Chan and CIA liaison Bashir Gemayel to launch a rogue investigation, putting his own job at risk.

As more American spies and diplomats fall prey to this unexplained phenomenon, and terrorist attacks increase at home and abroad, Nathan unearths evidence of high-energy weapons and a conspiracy that threatens the very fabric of national security.

But when the CIA dismisses his findings, and the balance between his official and illicit missions teeters on the edge of collapse, Nathan must choose between his duty to his country and his devotion to Reagan. With his allies falling one by one to mysterious attacks and with friend and foe seemingly indistinguishable, Nathan must stop the spread of the Havana Syndrome and uncover the truth…or risk becoming its next victim.

Bestselling author Jeffrey James Higgins takes readers from the buzzing streets of Washington, D.C., to the eerie silence of Tallinn, Estonia, where suspense meets the stark realities of espionage, assassination, and deception. Perfect for fans of David Baldacci and Michael Connelly. The Havana Syndrome is a 2025 BestThrillers Book Awards Finalist.

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Praise for Jeffrey James Higgins:

“…fast-paced and filled with action from beginning to end…a captivating read.” —Readers' Favorite

“Jeffrey Higgins is a rising star author in our universe of thrillers…he turns the mysteries and dangers of our times into clock-ticking engrossing reading.” —James Grady, creator of Condor and author of the American Sky trilogy

“…as authentic as it gets! Jeffrey James Higgins pours his years of law enforcement experience into crafting characters that leap off the page.” —Jack Stewart, retired Navy fighter pilot and bestselling author of the Battle Born series

“Pulse pounding and relevant, Higgins delivers a thrilling ride you won’t want to miss.” —Dale M. Nelson, retired U.S. Air Force Officer and author of The Gage Files

“…a propulsive, white-knuckle ride into the shadowy world of espionage and global conspiracy…This one is not to be missed.” —David McCloskey, former CIA analyst and author of The Seventh Floor

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What readers are saying:

★★★★★ “Detailed spy craft...”
★★★★★ “...strong characters...”
★★★★★ “...this book had it all...”
★★★★★ “...tightly crafted thriller...”
★★★★★ “...a great start to a series...”