Shepherd’s witches, beasties, goblins, and Royals return in the spellbinding conclusion to the Grim Lovelies duology. It’s been six weeks since the siege of Montélimar and Anouk is the only member of her Beastie family left in human form. Cricket, Luc, and Hunter are being held captive as animals by Crown Prince Rennar. In order to help them, Anouk is forced into a sinister deal with her sworn enemy: accept his marriage proposal and he'll free her friends. She agrees to the political deal but only on the condition that she be allowed to undergo a trial by fire that will transform her into a powerful witch!