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.