Olive is a unicorn that was banished to the shoreline by the Shell King after losing to him in a contest years earlier.  To ensure that she does not escape the island, the Shell King enlisted the help of a giant jellyfish to guard the waters.  Olive’s beautiful coat of white was transformed into a drab grayish-green that matched her jealous heart which added to her punishment.  The Shell King may have won that battle, but he had not broken her spirit.  The one joy left to Olive was the ability to make rainbows.