The new governess was a real acquisition to the household, and devoted herself more to politics than tuition. Once more the duke resumed his habit of letter-writing, and epistles both supplicatory and minatory were showered upon the Duchess of Angouleme and the Duchess de Berri. To the former, however, the pretender generally wrote as to a beloved sister, whose coldness and reluctance to receive him caused him the keenest pain. He offered to satisfy her as to his identity by incontrovertible proofs, and recalled one circumstance which ought to dissipate her last lingering doubts as to his truth. He reminded her that when the royal family were confined together in the Temple, his aunt the Princess Elizabeth, and his mother Marie-Antoinette, had written some lines on a paper; which paper was subsequently cut in two and given one half to "Madame Royale," and the other half to the dauphin. "When we meet," said the pretender, "I will produce the corresponding half to that which you possess. It has never been out of my possession since our fatal separation." Even this appeal failed to move the duchess, and failed simply because she had never heard of the existence of any such divided document. But the claims even of righteous claimants are apt to become wearisome to the public, and the interest in them dies away unless it is now and again fanned into a flame. The Duke of Normandy found it so, and devised a new means of attracting attention. Although he had gone with his followers to return his grateful thanks to God at the shrine of St. Arnould, he was not a member of the Roman Catholic Church, but he discovered the error of his past ways, and was desirous to embrace the orthodox faith. Accordingly, he was openly received as a disciple and proselyte in the church of St. Roche. His conversion was followed by that of his wife and children; but it cost him a very good friend. It was hoped that the governess would have consented to change her creed with the others. But the Swiss girl was a good and conscientious Protestant, and this wholesale conversion aroused her suspicions as to the cause in which she was engaged; she reviewed the pretensions of the duke a little more judiciously than she had ever done before, and as the result of her investigations, threw up her post and returned to her father, convinced that she had been ignorantly aiding an imposture.