When in RomeAuthor: Marsh, Edith Ngaio (1895 1982) signed Year: 1970 Publisher: Collins Crime Club Place: London Description: 256 pages. Octavo (8" x 5 1 2") bound in original publisher's red cloth with gilt lettering to spine. Signed by the author. First edition. When in Rome is a detective novel by Ngaio Marsh; it is the twenty sixth novel to feature Roderick Alleyn, and was first published in 1970. The novel takes place in Rome, and concerns a number of