Brooklyn-based New Yorker editor Ben Greenman is looking for help with his new “highly fancy limited edition publication.” The book, Correspondences, is a collection of short stories written in epistolary form, and includes an unfinished story called “What He’s Poised to Do” that intentionally leaves gaps in the narrative.

“The Man is staying in a hotel. While he is there, he writes and receives a number of postcards. Some carry messages of love, others messages of regret, others still are confessions or rationalizations. There are nine postcard messages in all, not a single one of which is actually reprinted in the text of the story. That’s where you come in.”

Calling this interactive portion of the book The Postcard Project, the unwritten sections, numbered from one to nine, represent postcards sent from one character to another. Greenman is inviting writers (or anyone, really) to fill in the holes in the story by sending in postcards to an address in Brooklyn, numbered according to where they belong in the story.

Submissions will be read by Greenman and selected to be included in future editions of Correspondences. More information can be found here.