KEYSTONE PASSAGE: TO AFRICA AND BACK is a 14 chapter light fantasy middle grade book that combines time travel, science, African American and African culture and history. Cliff, Monty, Shandra, and Quisha's summer visit to Grandma's turned out to be more interesting than they had anticipated. An unexpected find transports them to ancient and modern Africa where they meet indigenous Africans and make new friends. However, they must find their way back home. They use their knowledge of science, history, and wits to find their way back to grandma's.