The hen came out to pick up sticks for the fire and left the door open while doing so. The fox slipped in while her back was turned. She did not see him. He hid behind the door. As soon as the hen came in with her wood, she shut the door with a bang.
She didn’t see the fox sitting with his big fluffy tail on the floor. Imagine her shock when the fox crept up from behind her, then suddenly caught her. He forced her into the sack and tied up its mouth.