num_pages: 128
description: What if a fossil in your backyard . . . came to life?! Frank’s grandma is a famous paleontologist (that’s a dinosaur scientist). But she’s also an adult who makes up rules. Rules no digging for dinosaur bones when you have a sunburn. That means Frank is stuck playing inside with his annoying cousin, Samantha. But then Grandma finds a fossil of an egg! And when Frank and Sam sneak into the dino lab late at night, they find something even more amazing. . . . The hilarious Dino Files chapter book series follows a nine-year-old dinosaur expert, his paleontologist grandparents, a cat named Saurus, and fossils that might not be so extinct!
title: A Mysterious Egg
publisher: Random House Books for Young Readers