There was only a wall," they answered. "Who set it up?" they asked curiously.
"Why, the builders, of course. Men set it up."
"And who will pull it down?"
"It will not want any pulling down," the man answered grimly. "Time will do that."
As the children went back to their play, they looked up at the light towards which the boy was journeying.
"Perhaps we too shall reach it some day," they said.