Il tredicesimo segno

The moon is the thirteenth star sign that humanity has overlooked for much too long. While investigating this thirteenth sign, Sergej Orloff mysteriously disappears. His fiancée, Monique, is unaware of Sergej’s multiple criminal activities and believes that Martin Mystère is still his affectionate friend. Therefore, Monique turns to none other than the Detective of the Impossible to find her missing partner…