David Hagberg's New York Times bestselling Kirk McGarvey series continues in Retribution, with a deadly mission to take down a monstrous serial killer.

On May 1, 2011, a team of twenty-four members of US SEAL Team Six swooped down on the compound of Osama bin Laden in Abbottabad, Pakistan. Their mission, code-named Neptune Spear, was to find and kill the terrorist leader. The mission was a success.
Since that day, elements of the government of Pakistan have harbored a deep hatred for the SEALs who violated their sovereign territory. Now they've hired a team of German assassins to kill all twenty-four of the ST6 operators...and only one man stands a chance of stopping them: legendary former Director of the CIA Kirk McGarvey.
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