Enter a world where magic has been outlawed, tyrannical kings rule, and a castle is made of glass. A clever assassin is pulled from a life of servitude to compete for her freedom. If she wins, defeating 23 killers, thieves, and warriors, she’ll be released from her imprisonment to serve as the King’s Champion. But all is not as easy as it may seem. An evil lurks in the castle walls, killing off the competitors one by one. Her fight for freedom becomes one of survival. And she’s desperate to rid the evil before it destroys her world.