The wind was against them now, and Piglet's ears streamed behind him like banners as he fought his way along, and it seemed hours before he got them into the shelter of the Hundred Acre Wood and they stood up straight again, to listen, a little nervously, to the roaring of the gale among the treetops.'Supposing a tree fell down, Pooh, when we were underneath it?''Supposing it didn't,' said Pooh after careful thought.