Bad mermaids book cover

Something is rotten in the city of Swirlyshell. Could it be the oysters? Hmm, perhaps not…

Mermaids Beattie, Mimi and Zelda are enjoying a summer on land with legs when they receive a strange Crabagram ordering them to return home at once. It turns out some seriously bad mermaids are on the loose and the girls are the only ones who can stop them.

But if they’re going to save the day, they’ll need answers, fast! Plus a clam car, of course. Definitely piranha-print nail polish. But maybe not the talking seahorse.

Can they do it? Dive in and enjoy 20,000 laughs under the sea! Filled with magical mysteries, fabulous fashion, and a serious piranha problem, Bad Mermaids brings a whole new twist to the underwater world of mermaids.

Meet the mermaids!


Beattie Sheldon, like most young mermaids, dreams of having legs to walk around on land. Along with her two best friends — Mimi and Zelda — she joins the Queen of the Lagoon’s summer programme, which gives her just that — legs! Although her time having toes instead of a tail is cut short, it goes to show that Beattie is not one to wait around for an adventure — she makes it happen! Beattie is a great mermaid to have around when there’s trouble, and along with her friends, is pretty good at investigating.


Bad Mermaid book Mimi Mermaid

Mimi Swish spends her time with her best friend Beattie and twin sister Zelda. Mimi is the colourful twin with hair to match her personality! She’s cute and a bit ditzy at times, but like the other mermaids in the trio, she’s keen to solve a mystery.


Zelda Swish is the sassy twin with awesome hair and cool glasses. Though not as scatterbrained as her sister, Zelda has a bad habit for pushing buttons that she shouldn’t! Her quirky personality makes her one of the funniest of the three friends!


Ten lucky winners will have the chance to bag a copy of the Bad Mermaids book and join the mystery-filled mermaid adventure!

Click here to enter the competition!

Find out more at!



While you wait for it to be checked and approved why not to add a pre-selected message and a cool badge



  • I found Beattie in the tiger place.

  • matilda

    oooh! i want it soooo much so i'm gonna enter the competition;) #ilovebooks

  • Jada

    love this book!!!

  • Ursula

    This is so cool, I hope that I get the book someday even if I do not win the competition.

  • Jansika

    Really interesting

  • Rachel

    I can't wait . I hope I win!

  • tara

    already read the book it is awsome

  • I really like the sound of this book!

  • Donut

    I hope I can win!!!!!

More Like Books


Home Is Good

Get messy, explore and appreciate nature, all from the safety of home!

The Deep!

Dive into this exciting new book series…

Be enchanted by Serafina and the Twisted Staff!

Serafina and the Twisted Staff: The sequel to the best-selling Serafina and the Black Cloak, this story follows the adventures of mystifying young girl…

11 of the most valuable kids’ books of all time

Check out these pricey pages, gang!

Behind the scenes at the museum

Bring the museum home this summer!