When the babysitter is unable to come, Daniel is woken out of bed and joins his parents as they head downtown for their jobs as nighttime office cleaners. But the story is about more than brooms, mops, and vacuums. Mama and Papa turn the deserted office building into a magnificent kingdom filled with paper. Then they weave a fantasy of dragons and kings to further engage their reluctant companion–and even encourage him to one day be the king of a paper kingdom.