Este suplemento contiene "Alone On Halloween", una aventura en forma de librojuego (666 entradas) para un solo jugador y "The Old Dark House", la descripción de una vieja mansión inglesa y sus moradores, con varios ganchos de aventuras para La llamada de Cthulhu.
Alone on Halloween in an adventure for one player, in wich you assume the identity of Chris Grant, a top journalism student at Miskatonic University. Certain accidental events that occur while en route from Arkham to Salem lead you into supernatural terror and will bring you face to face with many horrors of both Cthulhu Mythos and non-Cthulhu Mythos origin, and possibly into the clutches of a mind-numbing alien god! You as an award-winning and always vigilant journalist attempt to make good use of your occult experiences that you know will produce your best work yet - a work that will win you much deserved recognition among the top parapsychologists and occult writers of your day, if you are brave enough to survive Alone on Halloween!
|0||Cover (for "Alone on Halloween")||Blair Reynolds||—|
|1||Alone on Halloween||Scott David Aniolowski, John Tynes||—|
|2||The Old Dark House||C. L. Werner||—|