As to the cause which was near making Milady lose her credit with the cardinal, Kitty knew nothing about it; but this time D'Artagnan was better informed than she was.
He found Kitty at the gate, and, as on the preceding evening, went up to her chamber.
D'Artagnan made Kitty promise to bring him that letter on the following morning.
D'Artagnan concealed himself in his closet; Milady called, undressed, sent away Kitty, and shut the door.
"Oh, you love her still," said Kitty, who had not taken her eyes off the young man's countenance for an instant.
"What matters it to you, Kitty? You know it is you alone whom I love."
By Kitty's chamber he could gain that of her mistress.
"There," said the young man, handing Kitty the letter sealed; "give that to Milady.
Poor Kitty became as pale as death; she suspected what the letter contained.
"Alas!" said Kitty, "for whom have I exposed myself to all that?"
"Ah, you do not love me!" cried Kitty, "and I am very wretched."
D'Artagnan replied in such a manner that Kitty remained in her great delusion.