When millions of fish start dying off the coast of Hawaii and something is destroying hundreds of ships, the government enlists the Flock--a band of genetically modified children who can fly--to help get to the bottom of the disaster before it is too late.

Their magic tree house takes Jack and Annie deep into the sea, where they meet up with dolphins, sharks, and octopi as they search for the answer to an ancient riddle. Morgan le Fay will make Jack and Annie masters of the tree house if only they can solve four riddles -- which will take four books, of course! Dolphins at Daybreak begins the third set of four books in this magical (and increasingly popular) series! Jack and Annie are off in the Magic...

A hermit crab who has outgrown his old shell moves into a new one, which he decorates and enhances with the various sea creatures he meets in his travels.

Sea Otter Pup spends the first months of his life with his mother in a protected cove off the California coast, learning how to hunt for food and care for himself, before venturing out into the dangers of the Pacific Ocean.

"Narwhal and Jelly... and Otty?! Exuberant Narwhal and skeptical Jelly test the waters of adding a new friend to their pod when they meet Otty the super-adventurous otter in the fourth book of this blockbuster early graphic novel series! Dive into three new stories about the joy of adventure and the power of friendship! In the first story, Otty the otter makes her debut splash; while Narwhal greets her with immediate enthusiasm, Jelly's not so sure...

"Oh no! There's a misbehaving shark at the playground! Swim along with the pout-pout fish as he confronts the challenge of bullying. He just might discover the strength of his community--and the power of his own voice."--