Book excerpt: Six mysterious passengers and seven dark secrets. Who can be trusted? It's a dark and dangerous journey for the Cobb and Co night mail coach, but when his coach-driver father is injured, young Jem Donovan must take the reins. Surely a boy like Jem can't handle a team of four horses and guide the coach on a rough bush track through fog and untold dangers? But there are six passengers on the coach tonight, each with a secret. And if Jem can't get them all to their destination by morning, the seventh secret could be deadly ...