Ennodius Papius, an Imperial, is a former lumberjack now living an isolated existence in a small camp a few steps up the hill from his old workplace, Anga’s Mill. He is one of your very first targets after joining the Dark Brotherhood. He does not exist prior to the related quest.
According to contract-giver Nazir, Ennodius skipped his work as a miller due to an unknown paranoia and apparently decided that the small camp was the safer place to be. He wanders around all day long, at times sitting on a nearby rock, and, if the weather gets tough, warms his hands over the fire. At midnight he crawls into the tent for eight hours of sleep.