I doubt that the 1969 "Naked Came The Stranger"
literary hoax was the first collaborative novel, but it certainly popularized the genre, inspiring a long line of homages, all of which nod to the original by including the phrase "Naked Came The..." in their title.
Examples include Naked Came the Manatee
, Naked Came the Phoenix
, and Naked Came the Sasquatch
The latest one is "Naked Came the Post-Postmodernist,"
which is a collaborative novel by 13 undergraduate students at Sarah Lawrence College in Bronxville, N.Y. The idea to create the novel was the idea of their writing teacher, Melvin Bukiet. [newsobserver.com
The plot summarized:
Who killed Eric Davenport? A senior mathematics professor at Underhill College has been found dead in his office, the victim of murder. At Underhill, a small liberal arts college with a pricy tuition and a pampered student body, all of the students are close to their professors. But at least one loved Eric Davenport in a deeply inappropriate fashion. Some hated him. And then there is the faculty at war with itself. And the idiotic administration. And the twin boys who live next to campus. And what’s with all those praying mantises?