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The Legend of King Arthur-a-tops

Written by Mo O'Hara and illustrated by Andrew Joyner
Published by HarperCollins
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Publisher Summary

“Truly this contains some knights to remember.” ―Kirkus Reviews

A bumbling triceratops must prove himself worthy in New York Times bestselling author Mo O’Hara’s second hilarious picture book offering a prehistoric spin on the legend of King Arthur.

It’s the Festival of the Stone, and dinosaurs from across the land will try to pull the great horn Rex-calibur from the magical stone. The one who succeeds shall be crowned king or queen. Arthur-a-tops is probably the least likely to accomplish the task. And yet…could he be the one true king?

In this completely reimagined Camelot featuring dino-squires, the trusty Merlin-a-dactyl, and easy-to-trip-over dinosaur tails, O’Hara transforms this classic tale into an enjoyable, accessible, and truly funny treat for young readers.

Coupled perfectly with Andrew Joyner’s expressive and classic illustrations, this story will induce fits of giggles and lots of knowing nods from parents who want their little geniuses to have the classics down by first grade.

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Who Wrote The Legend of King Arthur-a-tops

Mo O'Hara

Mo O’Hara is an American writer, actor, storyteller, and author of the bestselling My Big Fat Zombie Goldfish series. Mo got her start as an actress, traveling across the UK. During her travels, she was told that her stories were good enough to be written down—so she wrote them! Since then, she has hit the New York Times bestseller list with her middle grade series and has published three picture books: More People to Love Me, My Big Fat Zombie Goldfish: The Fintastic Fish-Sitter, and Romeosaurus and Juliet Rex. Born and raised in Pennsylvania, she now lives in London. You can visit her at

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Who Illustrated The Legend of King Arthur-a-tops

Andrew Joyner

Andrew Joyner is an Australian children’s book author and illustrator. He has worked as a receptionist, a fruit packer, and a tutor. Some of his many picture books include The Pink Hat; Too Many Elephants in This House, written by Ursula Dubosarsky; The Baby Swap, written by Jan Ormerod; and Romeosaurus and Juliet Rex, written by Mo O’Hara. Most recently, he has illustrated the new Dr. Seuss picture book, Dr. Seuss’s Horse Museum. When he isn’t drawing dinosaurs, Andrew can be found reading or dreaming about the ancient ruins of Europe. You can visit him at

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What Has Mo O'Hara Said About This Book

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What Has Andrew Joyner Said About This Book

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Mo O'Hara's Book Dedication

To my amazing nephews, Gabe, Fred, Hugo, David, and Mark—and my new niece or nephew who is on the way. . . .

Andrew Joyner's Book Dedication

For Uncle Bruce

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Book Details

ISBN 10:
ISBN 13:
Publication Date:
March 3, 2020
Illustration Details:
The artist used Procreate and Adobe Photoshop to create the digital illustrations for this book.