The Book Train Wreck 21 is of a mysterious train called Barron 21, which kills 16,000 people. A character infamously called UNKNOWN kills all of them. This massive attack is bigger than 9/11. This UNKNOWN killer is coming from where nobody knows and makes everybody confused about? It's the biggest mystery! Would anyone ever find UNKNOWN? Train Wreck 21 will take you on a wild ride. This book is packed with action, adventure, suspense and mystery. It's perfect for people who enjoy reading heart-pounding thrillers.