The Skytractor factory, at the eastern edge of Tanas, has been the site of strange occurrences lately. The authorities have received reports of strange noises and moving shadows during the night, but whenever someone is sent to investigate, it is eerily quiet and devoid of any signs of life.

Would it be only shadows and noises, it would not be considered of any importance to the law enforcement. Unfortunately, the factory workers also report strange findings once every few days. Things get really serious when one morning, the workers enter the factory to find a large, round, scorched circle in the middle of their workshop floor.