The Returned Book — Diagnostic Sample Chapter One: The Returned Book Mara put the book on the counter. “Don’t open it,” said the note. She checked the return slip. It was dated tomorrow. Chapter Two: The Empty Shelf The next morning, Mara looked for the book’s place on the shelf. A narrow gap waited between two green volumes. Inside the gap was another return slip. This one had no date. Original demonstration material by Automateed. Permission granted to copy, modify, and redistribute this sample.