EG:Slender: The Arrival is a work of horror, but 'horror' doesn't come close to covering the emotional journey involved. Angst comes first. It arrives after you leave the muffled safety of your Jeep and twist through the trees towards an old friend's mansion for a reunion. As any walker knows, night doesn't fall in a forest. It rises, up from the brush, in great billowing shadows. By the time you make it to the front door the light has entirely failed, the darkness surged through the leaf canopy, up and up, to form a unanimous night.