First published in the New York Picayune Newspaper, serialized from March 27 to May 15, 1858.
Jessica Amanda Salmonson says that Fitz "refused to complete his meandering fantasy" and that the final chapter "is generally credited to his editor Frank H. Bellew", although it may have been written by his sub-editor William Pool.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| June 1971 |
|
Horrors Unknown | Walker & Co. | Anthology | 78 |
| May 1972 |
|
Horrors Unknown | Kaye & Ward | Anthology | 78 |
| February 1976 |
|
Horrors Unknown | Berkley Medallion | Anthology | 87 |
| March 1988 |
|
The Supernatural Tales of Fitz-James O'Brien, Volume Two: Dream Stories and Fantasies | Doubleday | Collection | 47 |
| April 2008 |
|
The Wondersmith and Others | Ash-Tree Press | Collection | 160 |
| September 2017 |
|
The Collected Supernatural and Weird Fiction of Fitz-James O'Brien | Leonaur Ltd | Collection | |
| September 2017 |
|
The Collected Supernatural and Weird Fiction of Fitz-James O'Brien | Leonaur Ltd | Collection | |
| November 2017 |
|
Fitz-James O'Brien: Gothic Short Stories | A Bit O'Irish Press | Collection | 331 |
| March 2025 | What Was It? and Others (1858-1864) | Swan River Press | Collection | 3 |