LONDON — Once upon a time, a very long time ago now, a real stuffed bear called Winnie-the-Pooh lived near a small forest in England with a real little boy called Christopher Robin Milne.

Then Winnie-the-Pooh took a Very Long Trip, because that’s what bears do when Publishers ask, and the Trip turned into a Stay and now he lives in a glass case at the New York Public Library, which very much wants to keep him.