Book excerpt: Join Roger, Diana, Snubby, and Barney as they unravel the enigma of 'The Rilloby Fair Mystery'. A pompous visit from Great Uncle Robert sets the stage for an adventure filled with a traveling fair, the enigmatic Green Hands Gang, and perplexing nighttime thefts. How does a cunning thief bypass locked doors and barred windows to pilfer precious documents? Determined to uncover the truth, the four intrepid children, accompanied by their loyal companions Loony the dog and Miranda the monkey, embark on a quest to solve the mystery that has gripped their town. Prepare for a thrilling ride as secrets unravel and unexpected twists reveal themselves in this gripping tale by Enid Blyton.