It was a ghastly thought, and the awfulness of it was perhaps accentuated by the snow dashing against the window panes and the wind shrieking around the gables of the cabin. It was near ten o'clock, long past their usual bedtime, and they were still talking, for there was matter enough in their brains to banish sleep, when the door suddenly opened and accompanied by the howl of the wind a snow-covered figure lurched in upon them..