The Trace On System, abbreviated as either TOS or TRON are a series of epidermal implants and nano-fiber filaments implanted to improve the reflexes, balance, and agility of the augment wearing them.
During a storm the PCs come upon a little boy that plays in the rain. Upon further inspection they discover that he has one eye and a long tongue lolling in its mouth. Spit dripping. It is a demon from beyond that can access our realm during storms, it eats all heads that are not its own, living and dead.