was retained when the 1961 revision was introduced. It was never revised again, and remains in print as of 2009. Various editions have come under criticism from adult collectors, mainly because the costumes worn by the Colony members resemble KKK apparel. References External links 1931 American novels 1931 children's books 1961 American novels 1961 children's books Children's mystery novels Grosset & Dunlap books Nancy Drew books