Any parent who has ever been sleep-deprived will smile at this richly illustrated, lively original folktale that reassures us that all babies are good babies — and that patient love can foil even the worst-laid plans.

A troll-baby living with humans? A human baby with trolls? What chaos and heartache that would lead to!

Long ago, a dark-eyed witch, passing through a valley deep in the mountains of Norway, discovered two families — one human and one troll — each with a brand-new baby. The human baby slept all day and cried all night, driving his family crazy, no matter how much they rocked or sang or made funny faces. Likewise, the troll baby was a terror who slept all night and cried all day, which is when trolls like to take to their beds. Meanwhile, the witch, hoping to refresh her travel-weary bones with some wickedness, gleefully swapped troll-brat for human infant. But what is a wily witch to do when her bad intentions backfire?