Sea Leopard
New York Times–Bestselling Author: A captured submarine must be retrieved from the Russians before they can decode its cutting-edge technology . . .
The Royal Navy is testing Sea Leopard, an anti-sonar device that can make its subs virtually undetectable. But before the work can be completed, their nuclear submarine Proteus is targeted and trapped by the Soviet Union—whose military is determined to figure out, and steal, this new technology.
Spymaster Kenneth Aubrey sends SIS agent Patrick Hyde to locate the device's inventor before the KGB gets to him first. In the meantime, a US Navy officer is on his way to Russia in hopes of fixing Sea Leopard and getting Proteus out of drydock before it's too late . . .
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Craig Thomas
Craig Thomas was a trailblazing British author who combined espionage, military technology, and high-stakes adventure in his gripping novels. Best known for his Kenneth Aubrey and Patrick Hydeseries, Thomas crafted complex plots filled with cutting-edge technology, Cold War intrigue, and morally ambiguous characters. His work is considered foundational in the techno-thriller genre, blending realism, suspense, and geopolitical tension. With his meticulously researched and fast-paced narratives, Thomas remains a significant figure in espionage literature.
The Kenneth Aubrey & Patrick Hyde
The Kenneth Aubrey & Patrick Hyde consists of ten books. The current recommended reading order for the series is provided below.


