Once seen, a woman not easily to be forgotten, from her physical appearance. About eight-and-forty years of age, tall and very strongly built, with broad shoulders and big wrists, knuckles both of wrists and hands very prominent, great frontal development, but low forehead, a penthouse for deep-set gray eyes. Light hair, thin, dull, and colourless; thin and colourless cheeks; thin lips, closing tightly over rows of small, gleaming dog's-teeth; big, square, massive jaw; cold, taciturn, and watchful, with eyes and ears of wonderful quickness, wits always ready, hands always active and strong. She came to Mrs. Derinzy on Dr. Wainwright's recommendation as "exactly the person to suit her," and she fulfilled her mission most exactly. What that mission was we shall learn; what her previous career had been we will state. She was the only daughter of one Robert Hall, a verger of Canterbury Cathedral, a clever, drunken dog, whose vergership was in constant peril, but who contrived to hoodwink the cathedral dignitaries as a general rule, and who on special occasions of outbreak invariably found some influential friend to plead his cause. He was a bookbinder as well as a verger, and in his trade showed not merely skilful manipulation, but rare taste, taste which was apparently inherited by his daughter Martha, who, at seventeen years of age, had produced some illuminated work which was pronounced by the _cognoscenti_ in such matters to be very superior indeed. The cathedral dignitaries patronised Martha Hall's illuminations, and displayed them in their drawing-rooms at those pleasant evening gatherings, so decorous and so dull, and where the bearers of the sword mingle with the wearers of the gown, yawn away a couple of hours in looking over photograph-albums and listening to sonatas, and after a sandwich and a glass of sherry, lounge away to begin the night with devilled biscuits, billiards, and brandy-and-soda-water. The military, to whom these illuminations were thus introduced, thought it would be the "correct thing" to buy some of them; they would look "deuced well" in their rooms; so that the front parlour of the verger's little house in the precincts was speedily re-echoing to clanking sabres and jingling spurs, the owners of which were none the less ready to come again because the originator and vendor of the wares was a "doosid nice girl, don't you know?--not exactly pretty, but something doosid nice about her!" Martha Hall's handiwork was seen everywhere in barracks, and "many a holy text around she strewed," and had them hung up in subalterns' rooms between portraits of Mdlle. Joliejambe and the Blisworth Bruiser.