Secret Kingdom: Mermaid Magic

Queen Malice has cast her most dangerous spell yet! The wicked queen has cursed the Magic Hourglass. When the sand runs out, all the magic will be gone from the Secret Kingdom forever! Jasmine, Ellie and Summer must find the four Enchanted Objects to break Queen Malice's spell, but the second one is deep in an undersea cavern. Can they get the Silver Shell before the Storm Sprites do?