Meet Rainbow Reef's fabulous fish kids: Aiden, the panicky pufferfish, Sparky the doggone friendly dogfish, Olga the eight-legged bully, her little sister Red, and Hubert, a tiny hermit crab who is working on his spy skills. When Hubert and friends play hide-and-seek in the spooky Kelp Forest, Red Octopus gets lost.Finding a tiny octopus in the ocean is trickier than detecting one grain of sand on the beach. Fortunately, Hubert has a secret weapon. Read about it in The Hunt for Red Octopus.