Mister Slaughter by Robert R McCammon

In the historical thriller Mister Slaughter, Matthew Corbett and his mentor Hudson Greathouse of the Herrald Agency attempt to transport the dangerous murderer Tyranthus Slaughter from an asylum to a New York gaol. The journey descends into chaos when the cunning Slaughter manipulates his captors, escapes into the wilderness, and leaves a trail of brutal violence across the colonial landscape. Along the way, Matthew discovers a link between the killer and the shadowy Professor Fell, uncovering a hit list that includes a former magistrate. Parallel to the pursuit, the narrative highlights the impressive strength of Zed, a slave and skilled warrior whom Greathouse eventually helps liberate. Ultimately, Matthew must summon his own courage to track the assassin to a final confrontation, securing justice while grappling with the trauma of the ordeal. Through this perilous mission, the story explores themes of professional duty, personal freedom, and the persistent nature of evil.