The X-Files: Young Adult Books

A man has disappeared, leaving nothing behind but his shadow burned into the floor. And he's not alone--two other people in the same town are also missing. Is it spontaneous combustion? That's Special Agent Mulder's theory, and he's almost got his partner, Scully, convinced. Until a mysterious clue leads them to Polarity Magnetics, a company that specializes in "dark matter"--reducing matter to pure energy. Original.