The Sun, the Moon, and Maybe the Trains

What would it take to convince you that the woods you just left is a hundred and forty-four years distant from the one you entered? Ten years have passed since the Civil War broke up John Bartley's family. Living with his aunt and uncle in the tiny village of Greendale, Vermont, isn't filled with excitement for a seventeen-year-old. Until John walks into the woods one day and stumbles into 2009... Fortunately, he chances upon the outspoken Tess McKinnon. To earn her trust, he must first convince her that he is neither a lunatic nor a liar. The proof he needs is buried at the end of a mountain road, where the ruins of Greendale lie just beneath a layer of dead leaves and moss. What became of his home? Why is there no record of its existence?