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Sierra Six: Gray Man, Book 11

by Mark Greaney

Thriller Action espionage

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The eleventh Gray Man novel delivers another intense covert operation filled with danger and suspense.

ASIN B09B46LBYT Views 28 Publisher Audible Studios Year 2022 Format Audible Audiobook Product Group Audible Adult No Narrator Jay Snyder Created May 25, 2026 Updated September 08, 2026

About This Book

Sierra Six is the eleventh book in the Gray Man series by Mark Greaney.

The story centers on a covert operative undertaking a high-stakes mission.

Readers can expect action and suspense typical of the series.

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I will be using this book for:

Sierra Six: Gray Man, Book 11

About This Book

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