Spring evenings are often cold and raw, and though this had been a fine day, warm even in the morning and meridian sunshine, the air chilled at sunset, the ground crisped, and ere dusk a hoar frost was insidiously stealing over growing grass and unfolding bud. It whitened the pavement in front of Briarmains (Mr. Yorke's residence), and made silent havoc among the tender plants in his garden, and on the mossy level of his lawn. As to that great tree, strong-trunked and broad-armed, which guarded the gable nearest the road, it seemed to defy a spring-night frost to harm its still bare boughs; and so did the leafless grove of walnut-trees rising tall behind the house.