Angela and Donald Emerson, self-proclaimed lovers of Portland, didn’t quite know what to do when they received an invitation to a retirement party in North Deering, a vast and little known expanse of wilderness right here in Portland, Maine. “Um, does anyone even live out there?” Angela laughed, clutching a Hilltop Coffee Shop mug in her hand. Donald pondered if they should even make the risky 1.5 mile trip to the mysterious hinterland. “We can’t walk there from here,” he remarked, his eyes serious under furrowed brows, “and that’s just too far away to bike. We would have to take the Prius.” Given the considerable danger of traveling a mile and a half, Angela and Donald almost called it quits. Still, Angela wanted to honor her manager’s retirement, so the couple prepared for their odyssey. They fully charged their cell phones in the case that North Deering was, a...