As magi apprentices, Everis and Wren have led a relatively peaceful life. But when the king dies under suspicious circumstances and Everis foils an assassination attempt on the princess' life, the pair are sent by their master to investigate the only lead they have. In a city far away ruled by the dead king's brother, they need to find answers-fast.

As an unlikely group of allies forms around them in the chaos, the apprentices will have to tap into everything they've been taught while relying on the likes of assassins, an eccentric shopkeeper, and an otherworldly avian to go up against an enemy unlike any they've encountered before.

But nothing about this plot against the royal family is what it seems. There's blood magic at the root of it, and its seductive pull is something Everis has struggled to resist since he was a child. A struggle which makes things complicated...and dangerous. Wren has always pulled him back from the edge when he's needed it, but what happens when they need fire to fight fire, and Everis is forced to bring out his darkness and learn to tame the untamable?