Nancy, Barby, and Doug Holland looked forward to summer in New Hampshire without realizing what exciting secrets came with their new home. The summer would hold more than swimming and horseback riding, blueberry pancakes and picnics at the lake, but they didn’t begin to guess how much more until Nancy bid for an old trunk at a country auction. <P> The Hollands were vacationing in an old house which had once belonged to a New Hampshire primitive artist whose paintings had lately become...