Granger's time demons, a hypothetical type of energy based entities that disrupts the fabric of the time continuum.
The term chronodaemon was coined by Dr. Manfred H. Granger when he first encountered them in 1900 when they tried to attack the Chronotrix.
A chronodaemon looks like a dark greenish mist with a human form. The chronodaemon has a height of an average human adult. They can take many shapes from a pin to a sphere shape.
The origins of the chronodaemons remains a mystery and they're thought to be a creation of the mind instead of really existing. Their gaseous appearance has opened debates that if they are really an illusion.