There are some pretty weird grown-ups living in Bailey City, but could the new third grade teacher from the Transylvanian Alps really be a vampire?

Shelly is a princess! A real princess! It's been a well-kept secret in Trident City, but now the word is out, and Shelly doesn't know how to act! Should she start wearing a glittery crown? Or move to a grand undersea palace? Will her friends have to call her Your Highness? Being a princess may be exciting, but Shelly's not sure she can truly play this royal part.

Mermaid Echo is doing tail flips because she's going to see her favorite under-the-sea band, the Rays. They're performing for Pearl's birthday party and everyone at Trident Academy is invited except Echo's best friend Shelly.

The kids worry that that Eddie's new math tutor is a sea serpent.

The Bailey School kids investigate to see if a candidate running for President of the United States is really a werewolf.

Unable to comprehend a beloved librarian's imminent marriage to a cafeteria worker who seems to be perpetually grouchy, Pearl becomes jealous when Echo, Shelly, and Kiki are all asked to be flower girls.

Mermaids Shelly and Echo are excited to begin third grade at the prestigious Trident Academy, but snooty Pearl, jokester Rocky, brilliant Kiki, grumpy Mr. Fangtooth, and an argument over their first project challenge the best friends. Includes facts about marine plants and animals and words to the Mermaid Tales Song.

There are some pretty weird grown-ups living in Bailey City, but could the swimming teacher at Camp Lone Wolf really be a sea monster?

While preparing for a unit on storytelling, the mermaids of Trident Academy learn of a legendary pirate treasure in their own city and Pearl decides to find it, despite a warning that it's guarded by a ghost.

Kiki wants to start a book club, but Pearl tries to steal the spotlight with a rival fashion club in this sparkling Mermaid Tales adventure.