How is Brain finally rescued in chapter 19

Brian makes a beef and potato dinner with orange drink and peach whip; all he needs to do is add water. As his dinner is cooking, though, a floatplane suddenly appears, landing in the lake. He can hardly believe what he is seeing as a pilot gets out and mentions hearing his emergency transmitter. He knows who Brian is because of all the news stories that have talked about him being lost. Brian stands stock-still, processing it all, and finally introduces himself and offers the pilot some food.