Assassin or protector; every choice has its consequences. Thren Felhorn is the greatest assassin of his time. Marshalling the thieves' guilds under his control, he declares war against the Trifect, an allegiance of wealthy and powerful nobles. His son, Aaron, has been groomed since birth to be his heir. Sent to kill the daughter of a priest, Aaron instead risks his own life to protect her from the wrath of his guild. In doing so, he glimpses a world beyond poison, daggers, and the iron control of his father.