Alexandra Pratt retells her amazing, historic journey

A hundred years ago a Canadian woman called Mina Hubbard made an astonishing 600-mile river journey to the heart of unexplored Labrador. She was travelling to restore the reputation of her husband, who had died on the same route. Now British writer Alexandra Pratt has become the first person since then to attempt this historic route through some of Canada's wildest territory, and she's written a book about it. She joins Martha Kearney to discuss Mina Hubbard's extraordinary achievement and to tell the story of her own expedition, "Lost Lands Forgotten Stories: A Woman's Journey to the Heart of Labrador".