In a little house on the top of a hill lives a happy little guy named Hugo. When Hugo sees a mysterious red string, he just knows he's going to find something wonderful at the end of it! Hugo's journey takes him across the river, underground, and throughout town -- all while gathering curious new friends along the way! What does Hugo finally find at the end of the mysterious red string? An embarrassing, hilarious, wonderful surprise! A rhyming refrain and Bob Boyle's signature animated, geometric art style will entertain readers as they learn about what happens when new friends work toward a common goal.