Dear Editor: I’ve just read Holderness resident Ty Gagne’s new book, The Last Traverse: Tragedy and Resilience in the Winter Whites. I bought additional copies for Christmas gifts, going to both Gibson’s in Concord and Innisfree Bookstore in Meredith. Other New Hampshire bookstores should carry it. Ty’s career is in risk management. His new book is about a hike gone tragically wrong on Mt.