Count Arakcheev's anteroom had quite a special character.
While still in the anteroom Prince Andrew heard loud voices and a ringing staccato laugh--a laugh such as one hears on the stage.
Boris, hearing a strange voice in the anteroom, came out to meet him.
And like a practical Petersburg lady who knows how to make the most of time, Anna Mikhaylovna sent someone to call her son, and went into the anteroom with him.
As she was crossing the anteroom she saw through the window a carriage with lanterns, standing at the entrance.