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...

The story of how Hank the septopus lost an arm is told.

When Dory the short-term memory fish finds herself lost, she becomes friends with Nemo and Marlin who comes with her on her journey back home.

"Oscar the Octopus catches a different sea creature every month of the year until finally he lets them all go in this lift-the-flap book"--

Kai, a merboy, loves to share hugs with his mother, but learns that some friends prefer fin bumps, tail claps, tentacle shakes, or claw pinches.

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. Poor Hermit Crab! He's outgrown his snug little shell and has to find a new home. And he does, with help from some friends who make the move less scary. Children facing change in their own lives will relate to Hermit Crab's story-and learn a lot about the fascinating world of marine life along the...

"Narwhal and Jelly become the coolest teachers in the world wide waters in the hilarious sixth book of this blockbuster graphic novel series! Dive into four new stories about Narwhal and Jelly becoming substitute teachers! The two best friends come across an enthusiastic school of fish one morning. Unfortunately, Mr. Blowfish, their teacher, has come down with a cold, and class will have to be cancelled . . . until Professor Knowell (Narwhal) and...