Something is happening to the ocean! It’s up to Erin to find out what it is. This time the Bubble takes Erin underwater to a whole new adventure full of mysteries and mermaids. Will she be able to help them? Will she be able to befriend Kai, the merman she has to work with? Will the new bonds of friendship be enough to save the ocean? Find out in Book 2 of The Magic Bubble Wand Series, The Underwater Bubble.