Antagonists or "Bad Guys"

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IT is a disembodied brain that controls all the people in Camazotz. IT is the source of evil on this planet. IT makes people do the same things like robots. IT speaks through the Man with the Red Eyes and is part of the Black Thing.

The Black Thing is a
cold and dark shadow that represents the evil forces that Meg, Calvin, and Charles Wallace must fight against in order to rescue their father.

Man with the Red Eyes is a robot-like citizen of Camazotz who tries to hypnotize Meg, Charles Wallace, and Calvin in the CENTRAL Central Intelligence building. The Man, like all of Camazotz, is totally controlled by the power of IT.