2 Samuel 17:18-19

18But this time a young man did see them. He told Absalom where they were. So they quickly left En Rogel and they went to a man's house in Bahurim. He had a well in his yard and they climbed down into it.

19His wife took a lid and she put it over the top of the well. Then she put some grain on it. Nobody knew that the men were hiding there.