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The Vigilant Spy (A Yuri Kirov Thriller #4) (Paperback)

The Vigilant Spy (A Yuri Kirov Thriller #4) By Jeffrey Layton Cover Image
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This is book number 4 in the A Yuri Kirov Thriller series.


Once a spy . . .  

Granted asylum by the United States, former Russian naval intelligence officer Yuri Kirov wants nothing more than to live peacefully with his adopted American family. But first the underwater technology expert must pay a price . . .
Yuri is drafted by the CIA. His mission: assist U.S. spies with uncovering the secret behind the People’s Republic of China’s new weapon system, codename SERPENT. The radical antisubmarine technology erases America’s advantage in underseas warfare.
Amid the turmoil of escalating tension between China and Russia, Yuri’s team is inserted by a spy sub onto Hainan Island in the South China Sea. The mission spirals out of control, leaving Yuri trapped with a CIA officer and a beautiful, high-ranking Chinese engineer. With PRC forces closing in and war between superpowers about to break out, there is only one avenue of escape left. That route will pit Yuri against China’s full might and power . . .
Praise for the The Good Spy
“An explosive, high-stakes thriller that keeps you guessing.”
Leo J. Maloney
“The excitement never stops . . . high adventure at its very best.”
Gayle Lynds
“A page-turner with as much heart as brains.”
Dana Haynes
 “A fast-paced adventure that will take readers on a thrilling journey.”
Diana Chambers
“Breathless entertainment.”
Tim Tigner

About the Author

Jeffrey Layton is the author of the acclaimed Yuri Kirov thriller series, including The Good Spy, The Forever Spy, and The Faithful Spy. He is a professional engineer who specializes in coastal engineering. Jeff uses his knowledge of diving, yachting, offshore engineering, and underwater warfare in the novels he writes. He lives in the Pacific Northwest. Please visit him at

Product Details
ISBN: 9781516105618
ISBN-10: 1516105613
Publisher: Lyrical Underground
Publication Date: May 12th, 2020
Pages: 375
Language: English
Series: A Yuri Kirov Thriller