Smoke Demon

From Wookieepedia, the Star Wars wiki.

A Smoke Demon was a creature who could change its form from solid to smoke at will. It could also absorb another person's body by flowing into it while in smoke form and cause the victim to disappear entirely. A Smoke Demon apparently had significant strength while in solid form as one was able to defeat the Wookiee Chewbacca in hand to hand combat on one occasion. It evidently did not have a capacity to speak orally, but instead communicated through some form of psychic ability, the extent of which is unknown.

One was used as an assassin by Kharys due to its ability to move and kill silently. He killed Katya M'buele while she was sleeping aboard the Millennium Falcon and with others standing guard, however he was not able to escape, as he was impaled by Luke Skywalker's lightsaber, which harmed the creature, whereas blaster bolts did not.

These creatures were created by the dark side of the Force. Kharys was one being who knew how to do so. Her smoke demon entrapped within it the souls of its victims, but these souls were released when the monster died.

[edit] Appearances

• Star Wars Annual 1: The Long Hunt (First appearance)