What else might they then discover?
It has been said that when sight is lost the sense of touch and hearing increase to almost unbelievable acuteness—Rush knew that. The blind often also develop a sense almost like radar which allows them to perceive an object ahead of them and gives them the ability to follow twisting paths.
Take one child and put him under the disability that the twins were born with. As intelligence grows so does single bewilderment. The world is a puzzling and bewildering place. Braille is a great discovery—a way to communicate with the unknown that lies beyond.
But the twins had shown almost no interest in Braille.
He reached back down for the tiny hands.
"Yes, we can communicate," the single voice that spoke for two said. "We have tried with you before, but we could not break through. Your mind speaks in a language we do not understand, in figures and equations that are not real to us. Those things lie all through your mind—on the surface we have sensed only your pity for us and your hate for the shadowy ones around you, the ones we do not know. It was a wall we could not climb. She is different.
"A part of her will go with us," the voice said. "There is another place that touches this one which we perceive and know more fully than this one."
The voice died away and brief pictures of a land of other dimensions beyond sight flashed in his brain. He had seen them before imperfectly in the disquieting dreams. "She must go with us for she can no longer exist here," the voice said softly. "Perhaps there are others like us to come—we do not yet know what we are or whether there will be others like us. But we must go now, before we were ready, because of her."
The mother's voice came. "You must go too. There is nothing here for you but sorrow. They will take you, John." A softness touched at him. "Please, John."