Barbara returned to Nepal for further research in Tibetan religious history, namely the life and teaching of Pha Dampa Sangyas, the 12th century Black Yogi whose center was Dingri Langkor. Aided by nuns and monks at Trulshig Rinpoche’s Thupten Choeling Gonpa in Solu, she photographed a precious manuscript. Overseen by E Gene Smith, it was published in 1979 in Thimphu, Bhutan. (See the book  The Traditions of  Pha Dampa Sangyas: A Treasurd Collection of His Teachings. Five volume Tibetan text; manuscript photographed and introduced by BN Aziz)