Olivia Sharp, Agent for Secrets4 books in series
The Pizza Monster Publisher's Summary
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.
I, Nate the Great, have something to say. My cousin, Olivia Sharp, is almost (but not quite) the world's best detective. I solve mysteries. She's an agent for secrets. You won't forget Olivia. She won't let you.
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 he wants her help. So, Olivia puts on her feather boa. Her driver brings the limo. Soon enough, Olivia knows just what to do. But how will 50 pizzas make Duncan happy?