Summer of the Woods by Steven K. Smith

Derek's family moves to Virginia, so he, along with his brother Sam, have more room to explore the outdoors. The brothers plan an adventure in the woods behind their house, and Sam finds a 1931 wheat penny in the creek. They find out that a previous owner of their home was suspected of stealing rare coins from the local museum. Later, in his house, Derek discovers an 1895 Indian Head cent and a treasure map of a cave. He's determined to find the stolen coins, but searching in caves is very dangerous!

The plot moves quickly, and the events are easy to follow. The book shares historical facts about Virginia, and there's a good deal of information about coin collecting. The parents are very supportive, and the brothers learn something about making good decisions.