Book excerpt: A love letter to the working dog, this heartwarming memoir about life on a sheep farm captures the joys and heartbreak of loving a pet Patti Sherlock's working relationship with her Border Collie, Duncan, got her through the ups and downs of sixteen years on a sheep farm in Idaho. During that time, Duncan was an unwavering companion through the destruction of Patti's marriage, her children inevitably leaving home one by one, and eventually, her decision to stop raising sheep. Patti's life on the farm is a reflection of beginnings and endings, and the cycle of seasons in all of our lives.