Blackstar - Le monstre de la boue

A French one-shot from 1985, Blackstar - Le monstre de la boue is a standalone adventure published by Michel Lafon. The story likely pits the titular hero against the mud monster of the title, though the series itself consists of a single issue. While it represents a brief, self-contained moment in French comics of the mid-80s, its very existence as a lone entry makes it a curious footnote for collectors of the publisher's output.