Darius patted the ground next to him, offering a seat to them.<br/><br/>"They blight the land and animals where they sleep, which is how I know this was not its home.  They feed on sexual memories, and some conjurers summon them to do so, because if they devour all sexual memory from a person, it restores the person's physical and spiritual virginity.  They can also regurgitate stolen memories, when forced, and some use them to get the memories of others for blackmail."