"M. de Pont Brillant must often visit this curious and interesting pavilion, I am sure," said Marie, turning to M. Dutilleul. "M. le marquis has never been a victim to the Chinese craze, madame," was the reply. "He likes hunting much better. It was his great-grandfather who had this house built, because it was the fashion at that time, that is all." Marie could not help shrugging her shoulders the least bit in the world, and exchanging a half-smile with her son, who seemed to become more and more thoughtful as he followed his mother, to whom the doctor had offered his arm to conduct her along a winding path leading from the winter-garden to a rocky grotto, lighted by large, lens-shaped pieces of blue glass inserted in the rocks, which imparted to this subterranean chamber, ornamented with beautiful sea-shells and coral, a pale light similar to that which pervades the depths of the ocean. "We are going to the home of the water-nymphs now, are we not?" asked Madame Bastien, gaily, as she began the descent. "Isn't some mermaid coming to welcome us upon the threshold of her watery empire?" "Nothing of the kind," replied the doctor. "This subterranean passage, carpeted, as you see, and always kept warm during the winter, leads to the château; for you must have noticed that all the different buildings we have seen are connected by covered passages, so in winter one can go from one to the other without fearing rain or cold." In fact, this grotto was connected, by a spiral staircase, with the end of a long gallery called the Guards' Hall, and which in years gone by had probably served for that purpose. Ten windows of stained glass, with the Pont Brillant coat-of-arms emblazoned upon them, lighted this immense room finished in richly carved oak, with a sky ceiling divided by heavy groins of carved oak. Ten figures in complete suits of armour, helmet on head, visor down, halberd in hand, sword at side, were ranged in line on the other side of the gallery, facing, and directly opposite the ten windows, where the reflection from the stained glass cast prismatic lights upon the steel armour, making it stand out in vivid relief against the dark woodwork. In the middle of this hall, upon a pedestal, was a knight, also in a complete suit of armour, mounted upon a battle-steed hewn out of wood, which was entirely hidden by its steel bards and long, richly emblazoned trappings. The knight's armour, which was heavily embossed with gold, was a marvel of the goldsmith's art and of elaborate ornamentation, and M. le chef of the conservatories, pausing in front of the figure, said with a certain amount of family pride: "This suit of armour was worn by Raoul IV., Sire de Pont Brillant, during the First Crusade, which proves beyond a doubt that the nobility of M. le marquis is of no recent date." Just then an elderly man, dressed in black, having opened one of the massive doors of the hall, M. Dutilleul remarked to Doctor Dufour: