‘She was full six feet high, wore a man’s greatcoat over the rest of her dress, had in her hand a goodly sloethorn cudgel, and in all points of equipment except her petticoats seemed rather masculine than feminine. Her dark elf-locks shot out like the snakes of the gorgon between an old-fashioned bonnet called a bongrace, heightening the singular effect of her strong and weather-beaten features, which they partly shadowed, while her eye had a wild roll that indicated something of insanity.’ Her career in the tale corresponds with the strangeness of her exterior. ‘Harlot, thief, witch, and gipsy,’ as she describes herself, the hero is preserved by her virtues; half-crazed as she is described to be, he owes his safety on more than one occasion to her skill in stratagem, and ability in managing those with whom she is connected, and who are most likely to be familiar with her weakness and to detect her craft. Yet on hardly any occasion is the natural reader conscious of this strangeness. Something is of course attributable to the skill of the artist; for no other power of mind could produce the effect, unless it were aided by the unconscious tact of detailed expression. But the fundamental explanation of this remarkable success is the distinctness with which Scott saw how such a character as Meg Merrilies arose and was produced out of the peculiar circumstances of gipsy life in the localities in which he has placed his scene. He has exhibited this to his readers not by lengthy or elaborate description, but by chosen incidents, short comments, and touches of which he scarcely foresaw the effect. This is the only way in which the fundamental objection to making eccentricity the subject of artistic treatment can be obviated. Monstrosity ceases to be such when we discern the laws of nature which evolve it: when a real science explains its phenomena, we find that it is in strict accordance with what we call the natural type, but that some rare adjunct or uncommon casualty has interfered and distorted a nature which is really the same, into a phenomenon which is altogether different. Just so with eccentricity in human character; it becomes a topic of literary art only when its identity with the ordinary principles of human nature is exhibited in the midst of, and as it were by means of, the superficial unlikeness. Such a skill, however, requires an easy careless familiarity with usual human life and common human conduct. A writer must have a sympathy with health before he can show us how, and where, and to what extent, that which is unhealthy deviates from it; and it is this consistent acquaintance with regular life which makes the irregular characters of Scott so happy a contrast to the uneasy distortions of less sagacious novelists.