In Dead of Night, investigators explore the facets of Arkham best left unseen in the light of day. Organized crime builds a strong foothold in the city, secret cults labor for a dark master, an alien moon hangs overhead, and unknowable horrors stalk the nightIncludes 2 New ScenariosNew encounters for every location in ArkhamAdds 4 New Inverstigators; new Monsters, anomalies, spells and itemsNot a standalone product, the following is required to play: Arkham Horror 3rd Edition