"One of the best thrillers I have read this year." --Books and Movie Reviews (re Any Means Necessary) In PRIMARY DUTY (The Forging of Luke Stone—Book #6), a ground-breaking action thriller by #1 bestseller Jack Mars, a Supreme Court Justice is taken hostage by a terrorist organization. With a consequential decision before the court, the death of this swing Justice could change the political landscape for decades. Getting him back, against the backdrop of a massive marvel of engineering, would be mission impossible—a mission that only elite Delta Force veteran Luke Stone, 29, and the FBI's Special Response Team, may be crazy enough to take on. In this action-packed military thriller, filled with shocking twists and turns, the stakes as high as can be, Luke and his team may be up for their most challenging mission yet. PRIMARY DUTY is a standalone, un-putdownable military thriller, a wild action ride that will leave you turning pages late into the night. The precursor to the #1 bestselling LUKE STONE THRILLER SERIES, this series takes us back to how it all began, a riveting series by bestseller Jack Mars, dubbed "one of the best thriller authors" out there. "Thriller writing at its best." --Midwest Book Review (re Any Means Necessary) Also available is Jack Mars' #1 bestselling LUKE STONE THRILLER series (7 books), which begins with Any Means Necessary (Book #1), a free download with over 800 five star reviews!