This is for my husband. He said he had a reader he loved as a kid. It was published by Scholastic. He said it is about a family who loses everything. The father, mother and at least two kids get in their car and head out. They end up buying a farm which is not fertile because they were taken advantage off. However, the farm is kind of magical and becomes fertile. The farmer who sold it to them comes back at toward the end of the book and wants it back. He says that the father of the family had said he would buy the farm with everything in his wallet and that he did not hold his end of the bargain because there were three moths in his wallet he did not give away. The farmer proceeds to plant trees which grow immediately and turn the day to night because of the shade of their canopies. The family goes hunting for moths with a flashlight and find three moths to pay the bad man with.