Camazotz is a planet shrouded in darkness or evil, and Meg, Calvin, and Charles Wallace have been sent there by Mrs. Whatsit, Mrs. Which and Mrs. Who to rescue Meg and Charles Wallace's father, who is being held prisoner in the capital. Camazotz is particularly unsettling because of its emphasis on complete, synchronized and unthinking conformity. For example, all the children bounce balls on the sidewalk at exactly the same time of day in exactly the same rhythm. When one child fails to conform to the bouncing pattern, Meg, Calvin and Charles Wallace later see him being retrained to bounce correctly in a cruel way that involves electric shocks. The society, controlled by an evil entity called It, runs on the premise that complete conformity keeps everything in order and that order and control lead to happiness, though people are so brainwashed and controlled that they are devoid of will and hence of any real joy.