Polly, the Doctor's old white mare, plodded slowly along the snowy country road by the picket fence, and turned in at the snow-capped posts. Ahead, roofed with the ragged ermine of a newly-fallen snow, the Doctor's old-fashioned house loomed gray-white through the snow-fringed branches of the trees, a quaint iron lantern, which was picturesque by day and luminous and cheerful by night, hanging within the square, white-pillared portico at the side.