An old powdered manservant who was sitting in the antechamber rose quietly and said in a whisper: "Please walk in."
Old Tikhon, wearing a wig, put his head out of the door of the antechamber, reported in a whisper that the prince was sleeping, and hastily closed the door.
On the morning of the day that the young couple were to arrive, Princess Mary entered the antechamber as usual at the time appointed for the morning greeting, crossing herself with trepidation and repeating a silent prayer.
Although he was in retirement and had now no influence in political affairs, every high official appointed to the province in which the prince’s estate lay considered it his duty to visit him and waited in the lofty antechamber just as the architect, gardener, or Princess Mary did, till the prince appeared punctually to the appointed hour.
Everyone sitting in this antechamber experienced the same feeling of respect and even fear when the enormously high study door opened and showed the figure of a rather small old man, with powdered wig, small withered hands, and bushy gray eyebrows which, when he frowned, sometimes hid the gleam of his shrewd, youthfully glittering eyes.
There are no more uses of "antechamber" in the book.
Show samples from other sources
I was escorted to an antechamber where I waited almost an hour.
They went into the antechamber and there, sure enough, the two gentlemen-in-waiting were, sprawling on chairs and snoring hard.
C.S. Lewis -- Prince Caspian: The Return to Narnia