Relentless: Gray Man, Book 10
by Mark Greaney
Mark Greaney’s Relentless is the tenth entry in the Gray Man series. This action-focused espionage novel continues the series in a fast-paced format, offering returning readers another installment from an established fictional world.
About This Book
Relentless is a novel by Mark Greaney.
It is the tenth installment in the Gray Man series.
The book belongs to action-oriented espionage fiction, making it a fit for readers who enjoy continuing series and international thrillers.
As the series’ tenth volume, it offers an opportunity to return to Greaney’s established fictional world.
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