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OUP Australia
Children's FictionAges 5+

Emerald

A funny, charming new chapter book series by Harriet Muncaster

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Illustrated stage with Wiska Wildflower, Gordon, and Jack, and “Symphony of Stories – Book Week 2026.
Children’s books by Harriet Muncaster are displayed on a stage with a curtain backdrop, featuring colourful covers for The Diary of Wiska Wildflower and Isadora Moon Goes to the Ballet.

Get ready for Book Week 2026

From magical to mischievous, discover and join the symphony of Oxford Children’s most beloved series this Book Week 2026.

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Three books from the Emerald series, all on a green and white background.

The most rebellious princess under the sea!

Dive into a magical new adventure with Emerald. From Harriet Muncaster, creator of the beloved Isadora Moon series, comes a sparkling new chapter book starring Emerald the mermaid.

With charming two-colour illustrations and a funny, heartfelt story perfect for readers aged 5+, this enchanting series is ideal for fans of fantasy, friendship, and underwater adventures.

Discover the Emerald Series

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Looking for more from Harriet Muncaster?

Explore the enchanting worlds of Mirabelle and Isadora Moon, the sparkling new chapter book series from the creator of Emerald.

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