On the world of Tevrat, Callidus Assassin Klara Rhasc stalks her prey, awaiting the moment to strike. But when her mark is murdered by a crazed Eversor Assassin, Rhasc embarks on a new kind of to find and subdue her fellow operative. LISTEN TO IT BECAUSE The hunt is on. In this prequel to Execution Force, two Assassins go head to head in a hunt. When a Callidus Assassin must take on and subdue a psychopathic and drug fuelled Eversor, it's a fight to the death – but only if she's the one that loses.