Chet Gecko is a fictional character from a series of children's books written by Bruce Hale. He is a clever and humorous gecko who works as a private detective in a school setting. Chet often solves mysteries involving his classmates and teachers, using his wit and resourcefulness. The series features a mix of adventure and comedy, appealing to young readers. Chet's unique perspective as a reptile allows for creative storytelling, and his interactions with other characters, like Natalie the newt and Mr. Sizzle, add depth to the narratives. The books encourage problem-solving and critical thinking in a fun way.