"The purrmaids' homework assignment is to find something special to bring to class. Will they be brave enough to swim far away from Kittentail Cove and explore Tortoiseshell Reef to find the perfect thing? Or will they be scaredy cats?"--

Purrmaid Shelly is taking care of sea horse and new class pet, Bubbles, who looks mysteriously unwell; luckily Shelly and her two best friends discover how to perk Bubbles up, and in the process learn why some animals are not meant to be pets.--Provided by Publisher.

When Purrmaid friends Shelly, Angel, and Coral team up with the Catfish Club to audition for the annual Founder's Day Showcase, they learn that singing well requires more than just practice.

After a field trip to learn about new foods, purrmaid friends Shelly, Angel, and Coral decide to cook a surprise meal for teacher Ms. Harbor and her friend, but unexpected challenges arise.--

The purrmaids are going on their very first school sleepover, but Angel feels left out when she is paired with Cascade, a member of the Catfish Club.

Coral wants to see her jelly-o-lantern on display, but is nervous about going inside the Haunted House until her friends help Coral overcome her fear.

Shelly, Coral, and Angel visit Flamingo Island with Shelly's mom, but Shelly must put things right when the rock she took as a keepsake ends up being a flamingo egg.