Prologue: 12 Years Ago

Harmony and Melody are the twin daughters of Eric & Ariel. The granddaughters of King Triton. They always played together and always snuck into the others crib. But something terrible happened on their presentation day. When they were being introduce to their grandfather and all of Atlantica. The girls are separated for their own protection. Will they ever see each other again? What happens when Ursula's crazy sister Morgana steals the trident?