Set in the underground world of the Mercy Men – human guinea pigs in the laboratories of the Hoffman Medical Center.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1955 |
|
The Last Planet / A Man Obsessed | Ace Books | Omnibus | 5 |
| January 1965 |
|
Der Besessene | Moewig | Novel | 4 |
| 1968 |
|
The Mercy Men | Ace Books | Novel | 5 |
| 1968 |
|
The Mercy Men | David McKay | Novel | |
| December 1968 |
|
Urania #502 | Mondadori | MAGAZINE | 3 |
| January 1969 |
|
The Mercy Men | David McKay / SFBC | Novel | 3 |
| May 1969 |
|
The Mercy Men | Faber and Faber | Novel | |
| May 1971 |
|
Die verbotene Wissenschaft | Goldmann | Novel | |
| 1975 |
|
De genadigen | Bruna | Novel | |
| February 1981 |
|
Urania #873 | Mondadori | MAGAZINE | 3 |
| June 1984 |
|
The Mercy Men | Ace Books | Novel | 5 |
| January 2011 |
|
Beyond the Rings of Saturn / A Man Obsessed | Armchair Fiction | Omnibus | |
| July 2015 | A Man Obsessed | Project Gutenberg | Novel | ||
| August 2015 |
|
The 10th Science Fiction Megapack | Wildside Press | Anthology | |28 |
| February 2016 |
|
Alan E. Nourse Super Pack | Positronic Publishing | Collection | |23 |
| February 2016 |
|
Alan E. Nourse Super Pack | Positronic Publishing | Collection | |23 |
| March 2016 |
|
Alan E. Nourse Super Pack | Start Publishing | Collection | |23 |
| October 2017 | A Man Obsessed | LibriVox | Novel | ||
| April 2018 |
|
Alan E. Nourse Super Pack | Positronic Publishing | Collection | |23 |
| May 2020 |
|
A Man Obsessed | Fiction House Press | Novel |