Daniel Crawford has long admired the tree that stands alone on a hilltop, two farm fields away from his modest home in a sprawling neighborhood. But despite the tree’s alluring qualities, Dan never attempts to see it up close, until a devastating loss leaves him angry and frightened and grasping for peace. Finally standing beneath the giant white oak, he takes comfort in its majesty, and encounters an unlikely friend. Walter Benning is a wise, quirky, endearing farm owner. And his scholarly...