Theodore has a little boat and a big passion: collecting fish. He loves nothing better than discovering a new fish for his collection. But one day, he finds something he's never seen before: a tiny creature in a beautiful shell. Ignoring the voice that tells him to leave her alone, he takes her home, but in a tank she gets weaker and weaker. Can Theodore learn that the creature belongs in the ocean, before its too late? It's a dazzling and sparkling story of magic, friendship, and environmental conservation.