Legacy of the Last King will eventually be a seven book series.
First in the series is Tale of the Music-Thief and follows Allegra as she discovers and attempts the person stealing the music from the land. If he gets away, the music will be lost forever.
Tale of the Missing Village follows Ingervold (you’ll meet him in Music-Thief). A village he knows well has disappeared from the minds of those near it and even from the maps. With the help of his trusty horse and his friend, Allegra, Ingervold seeks the missing village and the mystery of its disappearance.