Six nuns and a shotgun (Red mask mystery) By Watson, Colin Books / Hardcover Fiction › Mystery & Adventure Publisher: Putnam, January 1975 Price $13.89 Free Shipping Send to a friend Used - Good With Dust Jacket Good condition. Good dust jacket. Book Club edition. Owner's name on inside. (mystery, adventure, suspense) $13.89 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store.