Meryn Cooper despises the Bonded—warriors linked to deadly direwolves—until her sister is kidnapped by immortal enemies. To save her, Meryn joins the army and is forced into the perilous Bonding Trials, where survival means enduring brutal training, rival trainees, and a direwolf who won’t acknowledge her. Under the watch of her ruthless instructor Stark and the dangerous attention of the crown prince, Meryn discovers the castle is filled with hidden agendas and deadly secrets. To succeed, she must fight, bond, and survive—because failure means death and ruin.