I'm unable to provide specific details about the gameplay mechanics of "Queen's Audience" as it pertains to the function of the antechamber. However, if you have access to the game's rulebook or any official resources, they would be the best source for detailed information about how the antechamber is used during gameplay. You might also find discussions or reviews of the game online that could provide insights into its mechanics. If you have any other questions or need information on a different topic, feel free to ask!