Memory:Shadow troll

Unlike its living brethren, this troll's skin is a sickly greenish-gray color, it has no hair whatsoever, and it smells downright awful. It mumbles as it walks, but it sounds more like vomiting than speech. The foreboding shadow of a huge humanoid dances across the walls, although you cannot see such a being anywhere. You gasp as the shadow steps out of the wall and lashes at you with ink black claws. You don't actually see it - the hulking shape drinks all light - but you have the impression that something moves in the heart of the blackness, something from the darkness that was before the night came.