Twin Crowns series by Catherine Doyle and Katherine Webber is a YA fantasy that follows twin sisters separated at birth—one raised as a royal princess and the other growing up in secret with magical abilities. Across the first three books (Twin Crowns, Cursed Crowns, and Burning Crowns), their lives collide as they navigate identity, duty, and the tension between magic and monarchy in a kingdom where witches are feared. As the stakes rise, the sisters must balance personal desires, romance, and shifting alliances while facing threats that challenge both their bond and the future of their realm, all within a story that blends humor, adventure, and heartfelt growth.