"Au revoir," said Gaston, and he rode off quickly.

CHAPTER VI.

A ROOM IN THE HOTEL AT RAMBOUILLET.

Gaston went away without saying how they were to meet again; but Helene thought that he would certainty manage that, and she contented herself with watching him as long as she could. Ten minutes later the carriage stopped at the Tigre-Royal. A woman, who was waiting, came out hastily, and respectfully assisted the ladies to alight, and then guided them through the passages of the hotel, preceded by a valet carrying lights.

A door opened, Madame Desroches drew back to allow Helene and Sister Therese to pass, and they soon found themselves on a soft and easy sofa, in front of a bright fire.

The room was large and well furnished, but the taste was severe, for the style called Rococo was not yet introduced. There were four doors; the first was that by which they had entered—the second led to the dining-room, which was already lighted and warmed—the third led into a richly-appointed bedroom—the fourth did not open.

Helene admired the magnificence of all around her—the quiet and respectful manner of the servants; while Sister Therese rejoiced, when she saw the smoking supper, that it was not a fast day.

Presently Madame Desroches returned, and approaching the sister, handed her a letter. She opened it, and read as follows:

"Sister Therese may pass the night at Rambouillet, or leave again at once, according to her own wish. She will receive two hundred louis offered to the convent by Helene, and will give up her charge to the care of Madame Desroches, who is honored by the confidence of Helene's parents."

At the bottom of the letter, instead of a signature, was a cipher, which the sister compared with that on a letter which she had brought from Clisson. The identity being proved—