Here are stories from Australia's dark heart: Of catastrophe and misfortune, intrigue and passion, betrayal and tragedy.

Some you may think you know - others, you have never heard of - but will capture your imagination.

They range across our past and our present: the heartbreaking story of the fire at Luna Park; the unstoppable opportunist who snatched innocent men and women from Palm Island to be part of P.T. Barnum's 'Greatest Show on Earth'; a world-class boxer who lost his battle with alcohol and ended up in an unmarked American grave; Steve Irwin, who was written off as a joke by the media, only to be hailed as a hero on his sudden death; and a man who heroically survived a war to find himself crushed and defeated by events much closer to home.