Nancy Koehn was on track for an administrative leadership role at Harvard Business School, where she taught the history of leadership to the world's best and brightest. But a series of personal crucibles -- the death of her father, a divorce that came without warning and decimated her finances, a cancer diagnosis -- caused the floorboards of her personal and professional lives to crumble beneath her. Her career aspirations drydocked, her sleep interrupted nightly at 1 or 2 a.m., she sought solace in the love of her intellectual life: history. When she picked up a book on Abraham Lincoln to help pass the agitated hours, she discovered in the trials of the 16th president that there was not only a way through her setbacks but a way beyond them. In this interview with BEYOND THE CRUCIBLE host and Crucible Leadership founder Warwick Fairfax, Koehn explains how her search for lighthouses of hope in the lives of great leaders who were dented by crucible experiences helped her find healing through FORGED IN CRISIS, her best-selling book about their trials and triumphs. Host and guest take a deep-dive look at the incredible story and important leadership lessons of British polar explorer Ernest Shackleton -- a conversation they conclude in next week's episode.