This story is a sequel to Derpy's Family reunion

Octavia is not your average musician. Oh sure she plays in the Canterlot orchestra but in reality she would rather be in the field. Her majesty Celestia has just given her the key to do that. Somepony has been killing off the elements of harmony. She along with the new Princess must find out who before something should happen. However the assassin is skilled. One has already died the others are being watched. Another story in my ALternate Universe Princess Derpy collection