The Music Room (Monsterville) (Volume 2)

When her teacher gives her a mysterious item for safekeeping, Jen promises to take good care of it. However, she accidentally awakens an angry spirit in the school's music room. Can Jen figure out how to calm the spirit and stop its school-wide rampage? And what does this all have to do with that mysterious item? Find out, if you dare venture into... THE MUSIC ROOM.