Trolls are creatures of gloomy swamps and dark caverns, their long-limbed bodies agile at navigating their usual homes. Thick green or black skin not infrequently covered in a coat of slime merges with their long noses and sharp teeth to create a fearsome image. Trolls' skill at ambushing the unwary is uncanny, and most troll lairs are decorated with the remains of victims who have been unfortunate enough to become a meal. When a troll travels out into the world, her presence can cause mothers to grab their children and run behind closed doors.