- Written and first published in English, apparently
- Children's picture book story Longer than a typical picture book story, evidently. "The story would be more effective, had the author not ammed quite so many bizarre details into so small a space." --Kirkus
- As of 2017-04-09: 5th of 5 Mellops titles in the lists of works by Tomi Ungerer at Wikipedia (French and English, identically dated 1957 to 1963). For this one alone, French Wikipedia gives no French-language title. 4th of 4 Mellops titles in the Kirkus Reviews online archive, reviewed June 1963 as "this fourth Mellops adventure by the author". --Kirkus
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1992 | The Mellops Go Spelunking | Dell | Chapbook |