New pick a path book designed to save lives in the real world

We speak to the to the author of a new pick-a-path, which is a book where you become the hero. You get to the end of a chapter and you're given a choice of where to go next. The book which has just been released actually intends to save lives in the real world as well as on the page. It's called The Tramp to the Blue Range Hut, and sees the reader control the fate of two young trampers setting off for the Tararua Rangers. We speak to author Caz Bartholomew.