What do they find in the tree this time? Who do they think it is?

One day in October they find two little figures in their secret knothole, a boy and a girl, carved artfully out of soap. Upon closer examination, they realize that the figures are images of themselves. They wonder who could have done it - maybe Mr. Avery, a neighbor who whittles wood. In a couple of weeks, they find a package of chewing gum, an old spelling bee medal, a broken pocket watch on a chain, and an aluminum knife. Jem can't get it the watch to work, but he and Scout decide to write a letter thanking the mystery person who is leaving them these gifts.