To beat the heat, Bloom and Benji explore all that Lake Whisper has to offer: flying dolphins, enchanted sand shaping, wish fish, even sea-star-gazing! Benji wants to dive into the activities, while Bloom wishes water magic were less unpredictable. She also thinks there's something fishy about Ursula, a sea witch who helps fellow campers . . . for a price. And soon the friends realize that Ursula might be after a prize that could sweep the whole camp away. Can Bloom overcome her fear of the lake and save the day—or will she be as helpless as a fish out of water?