Just how was it that a Polish resistance hero gave his name to Australia’s highest peak? Who accompanied Count Strzelecki almost to the summit when he made the first recorded ascent of Mt Kosciuszko in March 1840? How did the expedition come about? And how, may anyone who has been there ask, did they find their way up Hannels Spur, that 1700m climb on the west face of the Main Range? The answer to these and other questions can be found in a new book James Macarthur—The Untold Story of Naming Kosciuszko.