Olivia Sharp: Agent for Secrets: Books 1-4: The Pizza Monster; The Princess of the Fillmore Street School; The Sly Spy; The Green Toenails Gang

Olivia Sharp, cousin to super sleuth Nate the Great, is a detective too! Rather than solve mysteries like Nate, Olivia helps friends with their problems by detecting what's wrong beneath the surface. You'll be won over by Olivia's spunk, eccentricities, and can-do spirit.

THE PIZZA MONSTER: Meet Olivia Sharp. She's bold. She's eager to help people. She's a special kind of detective. She's an agent for secrets. Duncan is Olivia's first case. He believes that the world is coming to an end. And...