In Agatha Christie's short story, Poirot is summoned to the home of the head of the Ministry of Defense, to investigate the theft of top-secret plans for a new submarine.
| ISBN: | 9781974936205 |
| Publication date: | 1st January 2019 |
| Author: | Christie, Agatha |
| Publisher: | Dreamscape Media |
| Format: | Ebook (Epub) |