Oona has just stumbled upon the most amazing treasure in all of West Wog: a giant, mysterious egg. She is completely in love with her new baby and is determined to protect it until it hatches. She cannot wait to see what is inside, even if it turns out to be something that might try to gobble her up. But keeping the egg safe is a lot harder than it looks. Her smelly little brother Thunk, a local bully named Bruce Brute, and basically everyone else in her Stone Age neighborhood want a piece of her prize. You will cheer for the curious and mighty Oona as she battles prehistoric perils and sneaky neighbors to keep her darling safe. Get ready for a hilarious chapter book packed with adventure, wacky friends, and a lot of heart.