Later he told me that he'd been afraid to show me the painting. He thought I wouldn't like the way he portrayed me: dragging myself across the field, fingers clutching dirt, my legs twisted behind. The arid moonscape of wheatgrass and timothy. That dilapidated house in the distance, looming up like a secret that won't stay hidden. To Christina Olson, the entire world was her family's remote farm in the small coastal town of Cushing, Maine. Born in...