Case description
The earliest located source for this Joinville-le-Pont story is a reader’s letter published in Ici-Paris on October 11, 1954. Its writer identified himself as Louis Perret, a Paris industrialist. He claimed that he and a friend, named only as Mr D., were walking beside the Marne at 9:35 p.m. on September 25 when an object descended silently about twenty metres away.
According to the letter, two figures approximately 1.1 metres tall, with hair-covered faces, emerged. Perret said a ray immobilized him and one figure interfered with his trousers. His friend shouted; the figures returned to the object, which rose vertically. The brief letter provides no useful description of the machine, no description of the ray, and no claimed taking aboard.
Later catalogues repeated the story with altered times, initials and details. The imported entry uses 9:20 p.m.; the original letter gives 9:35. Michel Figuet noted the absence of an investigation and classified the case as a hoax or possible hoax; Jean Sider also raised that possibility. The surviving evidence supports the publication history of an uncorroborated anecdote, rather than an independently investigated encounter.