Never Look Back: The Dragon's Contract Bride

Callista is an illegitimate princess who strikes a bargain with her half-sister Elle, agreeing to take Elle's place in a bridal engagement. The arrangement lets Callista pursue a reward that matters deeply to her, but it also pulls her into a world of high fantasy where her choices carry real stakes. Her decision to swap roles sets the tension of the story in motion, as she must navigate the consequences of a promise made between sisters who share a father but not a claim to the crown.