Alone Against the Dark: Defying the Triumph of the Ice (A Solo Play Call of Cthulhu Mini Campaign) Chaosium Publication 23154

Alone Against the Dark is an adventure for one player, set in the fall of 1931. Your goal is to solve strange disappearances and to forestall a calamity about to beset the world. You will journey from New York City to Greece, Egypt, Germany, and Antarctica.
As the player, your job is to confound the forces of darkness before time runs out. You will play one investigator, but should “your” investigator be eliminated for some reason, you can successively assume the identity of a new investigator—there are four ready-made investigators provided for this purpose.
This adventure is guaranteed dangerous. But, no matter how skillfully you avoid death, your investigators will fail if they do not prevent the turning of the world and the freeing of the city of the Old Ones from the ice. Armed with a copy of the Call of Cthulhu Rulebook, a pencil, and some roleplaying dice you are all set for the twists and turns of this epic world spanning adventure. Sit back, get comfy, and prepare to be Alone Against The Dark!