[Margaret K. McElderry Books] Dive into the world’s coldest ocean in search of one of the rarest creatures on the planet® in this second story in a series of graphic adventure novels. Junior explorers Rocco and Olivia embark on an exciting journey into the frigid Arctic waters with famed explorer Fabien Cousteau and his research team. Together, they hope to find the rare dumbo octopus and uncover how this exceptional creature is able to live in such an extreme climate. To get there, they’ll board an icebreaker to travel to the Arctic Circle, and will come face to face with polar bears, puffins, Artic hares, and more. Then they’ll climb into a submersible and dive deep under the surface to see whales, narwhals, and other incredible species only found in these mysterious depths. Join the team on this deep-sea expedition, and learn how the changing climate affects the ocean and its inhabitants, and discover what you can do to help save the planet!