Under the Mountain Wall By Matthiessen, Peter Books / Paperback Special Collections / Author Archives › Peter Matthiessen Collection Publisher: The Viking Press, Price $13.89 Free Shipping Send to a friend Collectible - Good Collectible - Good. ISBN: 0140252703. From the library of American novelist, naturalist, wilderness writer, zen teacher and CIA officer Peter Matthiessen. (Ethnology, Dani, Papua New Guinea, Anthropology, Sociology) $13.89 3 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store.