They Call Me The Mercenary is a series of action-adventure pulp novels by Jerry Ahern, writing under the pseudonym of Axel Kilgore. The series follows Hank Frost, a one-eyed mercenary captain with a quick wit and an itchy trigger finger.


Jerry Ahern (1946-2012) was an American author of science fiction and action novels, best known his post-apocalyptic series The Survivalist. Aside from being a novelist, Ahern wrote for firearms magazines including Guns & Ammo, Handguns and Gun World. He often collaborated with wife Sharon Ahern. Jerry passed away in July 2012 from cancer.