Princess of the Aether Dominion, Kadeesha wants nothing to do with fae politics. She is a warrior, first and foremost, and believes her greatest strength is leading her squadron of elite winged serpent flyers to protect her homeland. But bound since infancy to be betrothed to the Hyperion High King, ruler of all Dominions, she has no choice but to do what men have chosen for her.

Imogen Nel is in hiding. Hiding from a cruel kingdom that believes Sirens are monstrous, blood-hungry creatures. Hiding from a king and his captain who viciously hunt her kind. Hiding from her own alluring abilities. By keeping herself from the sea, Imogen’s bloodlust is dulled, and her black wings remain concealed beneath her skin. When a neighboring king comes to visit, Imogen can no longer hide. He knows precisely what she is, and he believes she can save their kingdoms from an even greater monster.

Only the worthy survive the Bonding Trials. She’ll risk her life—and her heart—to be one of them. Meryn Cooper has always hated the Bonded, elite warriors who form mental links with the massive, vicious direwolves they ride. While they live in luxury, Meryn struggles to keep her family out of poverty. When her little sister, Saela, is kidnapped—stolen across the border by the immortal monsters her country has spent centuries fighting—Meryn’s world falls apart.

Even though she's not one of them, Brynn has spent her life among the Alaha, training to be a guard and waiting for the chance to attend the annual market hosted by the Kenta—the very same people who exiled her adopted community to a life at sea. Going to the market is a rite of passage eagerly anticipated by all young guards, but Brynn does not anticipate breaking a century-long peace treaty while there.

August 1955: When Miss Darcy O’Sullivan, an orphaned English teacher from Boston, receives a letter finding out that her biological father passed away, she is surprised to find herself included in his will. There is only one condition. She must travel to Fairydale to attend his funeral. With the promise of a sizeable inheritance, Darcy decides to journey to the small coastal town that holds the secrets of her birth. But the moment she steps foot into Fairydale, things start to go amiss.