Infiltrator — Frank Carey

United Earth Army Lieutenant Sylvester Veloso woke up in a lab over three decades late. Only now, he was in full werewolf mode and darned if he couldn't turn it off. Little did he know how useful the fur, claws, and fangs would be in his new job.Infiltrator is the fourth book in the Werewolf Saga of the Parthenon Universe where mankind must overcome seemingly impossible hurdles on its road to recovery from the ravages of the extinction-level event known as Ellie.