GMG7003 Shadows of Leningrad By Goodman Games Age of Cthulhu 3: Shadows of Leningrad (Officially Licensed Cthulhu Adventure) The death of a brilliant artist summons the investigators to Leningrad, setting them in pursuit of a mystery older than Russia herself. But when each secret revealed brings the investigators closer to madness, is the truth worth the price? This all-new adventure module uses the Chaosium BRP system and is officially licensed for use with Call of Cthulhu.