When a rescue goes awry and results in the death of something precious, the devastated Guinevere, impersonated by a changeling witch, returns to Camelot to find the greatest threat yet--the real Guinevere's younger sister.
"Emry, the daughter of the famed wizard Merlin, must disguise herself as her twin brother to learn magic in Prince Arthur's court, where she finds scandal, danger, and romance"--