Marjorie Weinman Sharmat

Being the boss of the school sounds like a dream, but it can actually cause a lot of problems. Desiree is determined to become the official Princess of the Fillmore Street School, and she expects every single person around her to act absolutely perfectly. When her bossy demands start to backfire, she realizes she needs some serious help to win over her classmates. Enter Olivia Sharp, a wealthy and clever agent for secrets who specializes in fixing tricky friendships. Olivia uses her resources to give Desiree everything she asks for, hoping it will solve the problem. However, the secret agent soon discovers that fancy gifts and royal treatment cannot change a bossy attitude. Olivia must dig deeper to help Desiree understand what it really takes to be a good leader and a kind friend. This smart and funny story shows readers that true friendship is about how you treat others, not what title you hold.

Not every mystery involves a stolen object or a missing pet. Sometimes, the hardest cases are all about feelings. Olivia Sharp is a bold and brilliant agent for secrets who uses her incredible wealth and sharp mind to help her friends solve their personal problems. When she discovers that a boy named Duncan is feeling sad and incredibly lonely, she knows she has to take the case. Duncan desperately needs a true friend, but making connections is not always easy. Olivia uses her signature spunk and highly creative methods to try and cheer him up, uncovering what is really bothering him beneath the surface. Along the way, she discovers that fixing a broken heart requires more than just money or fancy gadgets; it takes empathy and understanding. This humorous and touching story shows young readers that a little bit of kindness can be the greatest superpower of all.

The world's most glamorous secret agent is back in action, and she is ready to tackle her sneakiest case yet. Olivia Sharp may be the cousin of the famous detective Nate the Great, but she has her own unique way of solving problems. Instead of looking for lost keys or missing toys, Olivia uses her wealth, her chauffeur-driven limousine, and her sharp intellect to uncover deep secrets. When a new mystery lands on her desk, Olivia quickly realizes that someone in town is playing a very tricky game of hide and seek. Armed with her feathery boa and an unstoppable attitude, she dives into the investigation to figure out exactly what is going wrong beneath the surface. But this time, she might be dealing with a spy who is just as clever as she is. Young readers will love following Olivia's eccentric and fast-paced adventures as she proves that being a good friend is the best detective skill of all.

A trip to the beautiful coast of California sounds like a perfect vacation, but for a secret agent, it is just another chance to solve a tricky case. Olivia Sharp is not your average detective. Instead of looking for missing objects, she uses her wealth and clever mind to uncover hidden secrets and help her friends. When Olivia travels to Carmel, she takes on a mission to help a buddy gain entry into a very exclusive and mysterious club. To get her friend past the club's strict rules, Olivia has to dig deep beneath the surface and figure out what the group is really hiding. Armed with her signature spunk and a totally fearless attitude, she tracks down clues and unravels a web of silly secrets. This fast-paced and lighthearted adventure keeps readers guessing as Olivia proves that loyalty and creative thinking are the best tools for cracking any social puzzle.