Countdown Zero
An Agent Zero Spy Thriller, Book 18
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Countdown Zero
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Narrated by:
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Brian Callanan
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By:
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Jack Mars
Summary
COUNTDOWN ZERO is book #18 in the #1 bestselling AGENT ZERO series, from #1 bestselling and USA Today bestselling author Jack Mars (with over 10,000 five-star reviews). The series begins with AGENT ZERO (Book #1), a free download.
Beneath the ocean's surface lurks a submarine gone rogue, threatening coastal chaos with hypersonic missiles unless their ransom demands are met.
With only 24 hours to halt the countdown to devastation, Agent Zero must navigate a deadly game of cat and mouse beneath the waves—a game where one wrong move could lead to catastrophic consequences.
The AGENT ZERO saga offers a gripping journey packed with unexpected turns and dynamic action, keeping you enthralled from start to finish. At the core of this thrilling series is an engrossing relationship between a father and his daughter, which is sure to keep you listening voraciously until the early hours.
Books #19-#24 in the series are also available!
©2026 Jack Mars (P)2026 Jack Mars