Afraid to dive into the big blue sea with his mother to look for food, Little Otter drifts further and further from shore, and everyone he meets leaves him alone when they go to find help.

The pout-pout fish believes he only knows how to frown, even though many of his friends suggest ways to change his expression, until one day a fish comes along that shows him otherwise.

"Under the sea, a crab follows its heart and its calling, bringing everyone together in the wake of a disaster"--

Mr. Fish cannot fall asleep, but with help from his underwater friends, he finds a bedtime routine.

As the siren Effluvia tries to melt the Artic ice palace and destroy the sea animal sanctuary, the Sea Keepers and a friendly narwhal search for the magical pearl that will stop Effluvia. Includes tips for being a real-life sea keeper.

"Every day before Little Fish goes to bed, he says good night to all his friends--Red Fish and Blue Fish, Eye Fish and Sky Fish, Bumble Fish and Upside-Down Fish--before cuddling up with Mommy Fish for a long night's sleep. Fanciful, friendly characters and bright, mesmerizing artwork pair with simple rhymes and a repeated "good night" for a lullaby that eases little ones into the sweetest of dreams"--Provided by publisher.