Sophia, Willow, Chloe and Olivia have been best friends since they were merbies. Even though they don't go to school together, whenever they come home to Turtleville for the holidays, they are inseparable.
On the first day of the holidays, Willow takes a wrong turn on one of her wanderings and discovers the most beautiful pearl! Both her and her best friends are drawn to the shiny gem but before long, strange things start to happen.
Could this pearl have magical powers?