Long Shades, the first of three books in the Nocturnum campaign, introduces a new evil to your horror roleplaying game. An ancient, inhuman conspiracy has set into motion a chain of events that threatens to destroy the world as we know it -- and the player characters are the only ones who can stop it. The system used is compatible with Chaosium's Call of Cthulhu RPG, but the background and adventures can be easily adapted to any other horror roleplaying game. The book contains a detailed campaign background and three full adventures: Snow, Stone and Blood -- Snowbound in the sleepy mountain village of Snowflake Valley, the player characters are accused of murder. To clear their names, they must solve a mystery as old as the mountain itself -- while being stalked by a loathsome beast with a taste for human flesh. Madness of the Twilight Queen -- A forgotten cult, a mad scientist and a hot new drug all come together in a vortex of evil that threatens to destroy a small college town. It's all somehow connected, and if the player characters don't find out how, they will pay the price with their sanity. Stillness -- A girl is missing... a girl who has a secret with the power to kill. Desperate, her father implores the player characters, "Find my daughter!" But there are signs, terrible omens, that at the end of their search, only death and madness await.