First published January 1877 in Appleton's Journal, new series, vol. 2, pp. 12-23, as by "Mary Wollstonecraft Shelley, Author of 'Frankenstein,' etc." Appleton's prefatory note: "This posthumous story by Mrs. Shelley has not before appeared in print. It was found among the unpublished papers of {{a|Leigh Hunt}}, and is authenticated by S. R. Townshend Mayer, Esq., editor of St. James's Magazine, London."
Published in 1976, based on a manuscript, "and the present editor believes that the 1877 printing was based on this MS ...". Probably it was "written before the mid 1820s: i.e., before Mary Shelley began writing for the Annuals where restrictions of space disciplined her art to a greater extent." --Charles E. Robinson, 1976 collection "Notes", XXII, p. 395 (viewed at Amazon)
12,282 words per Project Gutenberg Australia version
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| April 1963 |
|
Seven Masterpieces of Gothic Horror | Bantam Books | Anthology | 331 |
| April 1970 |
|
Seven Masterpieces of Gothic Horror | Bantam Books | Anthology | 331 |
| 1976 |
|
Collected Tales and Stories with Original Engravings | The Johns Hopkins University Press | Collection | 308 |
| 1990 |
|
Collected Tales and Stories with Original Engravings | The Johns Hopkins University Press | Collection | 308 |
| January 2010 |
|
Horror Masters Vol. 5 | River Styx Publishing | Anthology | |
| February 2010 |
|
The Collected Supernatural and Weird Fiction of Mary Shelley: Volume 1 | Leonaur Ltd | Omnibus | |11 |
| February 2010 |
|
The Collected Supernatural and Weird Fiction of Mary Shelley: Volume 1 | Leonaur Ltd | Omnibus | |
| December 2018 |
|
Horror Stories | Flame Tree Publishing | Anthology | 311 |
| December 2018 |
|
Horror Stories | Flame Tree Press | Anthology | |311 |
| October 2021 | The Heir of Mondolfo | Project Gutenberg | Chapbook |