Les Aventures de Cyril - Le château des mille diamants

In 1977, Garnier Frères launched Les Aventures de Cyril with a single issue, Le château des mille diamants, a self-contained Franco-Belgian comic adventure. This series, though brief, represents a snapshot of the era's elegant ligne claire storytelling, with its sole entry offering a complete mystery. While the talent behind the series is not widely documented, its existence as a standalone volume reflects the period's tradition of polished, album-length narratives.