Arkham Horror 3rd Edition Under the Dark WavesCold salt waves beat on the New England coast and thick fog rolls in off the bay, obscuring the small fishing hamlets that nestle in the darkness. Dark things creep along the shoreline, strange lights glide deep beneath the surface of the Atlantic, and the pallid villagers go missing with disturbing regularity. Under Dark Waves is a new large box expansion for Arkham Horror, taking your investigations beyond the town of Arkham to the other ill fated