GrimJack: Killer Instinct

GrimJack: Killer Instinct is a single-issue story from IDW Publishing, released in 2005, that returns to the gritty, mystical urban landscape of Cynosure. Written by series creator John Ostrander, this one-shot follows the scarred mercenary John Gaunt as he navigates a deadly confrontation that tests his survival instincts. A focused, self-contained chapter in the long-running GrimJack saga, it showcases Ostrander's signature blend of hard-boiled action and dark fantasy.