Marnie Blue is so excited! She is going on a school trip to see the legendary palace of Queen Maretta with all her friends. But when Mum is too unwell to join the trip, Aunt Christabel agrees to come in her place, and she was offishially the naughtiest mermaid the school has ever known. Marnie expects mayhem. Will they board the whale-shark on time? Will everyone eat their packed lunches on the way there? And just who is sneaking around the palace causing all sorts of mischief?

Creators

Lucy Courtenay works in children's publishing and has contributed to a number of series for young readers including Beast Quest and Animal Ark, whilst more recently writing romance for young adults. When not writing, she enjoys singing, reading and travel.

Sheena Dempsey is a children's illustrator and picture book author from Cork. She has illustrated many books including Dave Pigeon written by Swapna Haddow (Faber & Faber, 2016) which was shortlisted for the Sainsbury’s Book Award. Sheena now lives in London with her husband, Mick, and her retired racing greyhound, Sandy. She loves to write and draw characters that are bursting with fun, humour and mischief.

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