"Historical facts constitute the background of this story. Its hero and its heroine are, of course, fictitious; but the deportment of General Arnold, the Shippen family, the several military and civic personages throughout the story is described, for the most part, accurately and in conformity with the sober truths of history. Pains have been taken to depict the various historical episodes which enter into the story-such as the attempted formation of the Regiment of Roman Catholic Volunteers, the court-martial of Major General Arnold, the Military Mass on the occasion of the anniversary of American Independence-with as much fidelity to truth as possible. The anti-Catholic sentences, employed in the reprimand of Captain Meagher, are anachronisms; they are identical, however, with utterances made in the later life of Benedict Arnold. The influence of Peggy Shippen upon her husband is vouched for by eminent authority. "