In which the vigilant D’Artagnan, endowed with the vigilance of Argus, observes and unravels tidings at court, as the king, wearied and restless, seeks the absent Louise de la Vallière, whose departure casts a pall over the morning’s grand assembly with foreign ambassadors. As diplomatic discourse is abruptly interrupted by news that stirs the king’s deepest passions, the scene closes on a tempestuous royal resolve, foreshadowing upheavals both personal and political.