Bestselling award-winner Chris Riddell introduces a brand new cast of characters lead by mermaid Atalanta Scrimshaw, who records the adventures of her friends in her diary. Perfect for readers of 7-9 who love Ottoline and Goth Girl.

Dive into a mermaid's diary and discover all the underwater secrets in this fantasy adventure from award-winning Chris Riddell. A gorgeous holiday read, fully illustrated in black and white throughout and perfect for 7 to 9 year old fans of Ottoline and Goth Girl.

'Charming, witty, imaginative, and packed with an unbelievable amount of stunning artwork . . . one of the best books to be published for 7-9 year-olds this year' - The Bookseller

Meet shy mermaid Atalanta Scrimshaw.

She lives in the quiet backwater of Sleepy Cove, collects messages in bottles, rides seahorses and enjoys the hobby of ‘walking’ on the beach and visiting friends.

Life is perfect until Atalanta learns of plans by developers Bristle & Splinter to transform Sleepy Cove into a luxury seaside golf resort. Realizing that this plan will destroy her home, she enlists the help of her friends, old and new, to try to stop it . . .

"Charming, witty and imaginative, and packed with an unbelievable amount of stunning artwork for the price point. This might be one of the best books to be published for 7-9 year-olds this year." - The Bookseller

"This gorgeous book, written as a diary with Riddell’s stunning illustrations, is so packed with literary puns and cultural jokes that I had to read it twice in case I missed something. The first in a series, this is the perfect summer read." - Daily Mail