• Age: 7 to 11
• Grade: 2 to 5
• Reading age: 8 to 9

A rip-roaring chapter book adventure – packed full of fun, laughs and dinosaurs! "Wow!" I said. "This is no orni…dary zoo, I mean-" "IT'S A DINOSAUR ZOO!" shouted AJ. Meet Arlo, a young boy who loves writing lists, dinosaurs and his best friends. Arlo and his friends are in Class 4X – a class with a reputation for scaring away teachers. Things aren't looking good, another teacher has run away screaming (literally). When the new substitute teacher, Mrs. Ogg, arrives Arlo wonders how long she will survive. Mrs. Ogg takes the class on a school trip, and the head teacher warns everyone to behave or they can’t go to the end-of-year party! Arlo realizes it's up to him to keep everyone in line. What Mrs. Ogg fails to mention is that they’re going to no ordinary zoo. . . An exciting chapter book for 7 – 9 year olds, Class 4X's antics are sure to keep readers entertained. Black-and-white illustrations bring the story to life alongside clear, engaging text. Perfect for fans of dinosaurs and adventure stories!

Alice Hemming lives in the UK with her two small children who provide lots of inspiration for her work. She writes for children of all ages. Alice is a proactive SCBWI member.

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Kathryn Durst grew up in Peterborough, Canada, and has been drawing ever since she could hold a pencil. She has a passion for children's illustration. She works in a variety of styles, using both traditional and digital mediums. Her art has been described as charming, whimsical, expressive, and full of life.

Kathryn attended Sheridan College for the Bachelor of Applied Arts 2D Animation Program. In her third year, she completed her internship at Pixar Animation Studios for storyboarding. She also works as an animator, filmmaker, and puppeteer. Kathryn also loves dancing, sewing, sculpting, playing accordion, cooking, and hanging out with her mini dachshund, Chili Dog. She is based in Toronto.

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"The worlds of 'Magic School Bus,' Mary Poppins, and Jurassic Park collide in this middle grade novel for readers fond of upbeat fantastic school adventures and dinosaurs."—School Library Journal