The Fletcher Moon Series is a collection of children's books written by author R. A. Spratt. The series follows the adventures of a young detective named Fletcher Moon, who is also known as "Fletch." He uses his keen observation skills and clever thinking to solve various mysteries in his town. The series is aimed at middle-grade readers and combines elements of humor, mystery, and friendship. Each book features engaging plots that encourage critical thinking and problem-solving, making it a popular choice for young readers who enjoy detective stories.