In the rough first draft I just wrote, the parents of two children try to turn the whole process of blacking out their house into a game so the children won't be traumatized by the actual possibility of being bombed:
Mother and Millicent cut up some blankets.
Father and David covered all the windows with them.
David and Millicent liked the game. It was like building a blanket fort, except with the whole house!
“We mustn’t let a sliver of light get out!” said Father.
“Why not?” asked Millicent.
“Giants!” replied Mother. “There are wicked giants, like the one in Jack and the Beanstalk, roaming the city.”
“I’ll grind your bones to make my bread,” said David in his best giant’s voice.
“Yes!” said Father, “and we mustn’t let them find us.”They succeed at diverting the children night after night, and then my story ends by jumping ahead many years, to when David and Millicent are grown up and have their own families, and are playing the Giant game with their own children, though now entirely innocently.