Runner 13

It?s the ultimate test of endurance: two-hundred-and-fifty miles in the brutal heat of the Sahara, with only the supplies you can carry on your back. Adri is ready. Returning to ultra-running in the wake of a scandal, she needs to prove to herself ? and her young son ? that she?s a winner. When a fellow runner is badly injured, Adri knows something isn?t right. Yet in a race this extreme, even a dead body can be explained away. But there?s a killer stalking the hot sand. And the problem with running faster than everyone else, is that you?re miles ahead of anyone who can save you?