"Atlantis calling; can you hear us?"When holographic merpeople show up while you're eating your breakfast, you know it's not going to be a normal day. They want to teach you a few things about water. It's difficult for merpeople to understand how many ways water can be dangerous to an airperson like you, but with the help of their technology, they can keep you safe.This book will ask you to make a lot of choices. When you make the safe choice, you get a starfish (but you still get to see the cool technology your merfriends would have used to save you if you'd gotten it wrong). See how many starfish you can collect!