While Cleo sets aside her feelings about Magnus to fulfill her royal duties, a betrayed Lucia teams up with a vengeful Fire god, Jonas becomes a pawn in the hunt for the Kindred, and King Gaius sails across the Silver Sea to forge a dubious alliance.

In the epic conclusion to the Falling Kingdoms series, sworn enemies must become allies as they fight to save Mytica. Jonas continues to willfully defy his destiny, but the consequences of plotting his own course are drastic. As the fight for Mytica rages on, he must decide just how much more he's willing to sacrifice. Lucia knows there's something special about her daughter and she'll do anything to protect her, even if that means facing Kyan alone....