What does Esther 6:4 mean?

Just then, Haman entered the outer court of the palace to ask the king to have Mordecai impaled on the pole he had set up. The king said, 'Who's out in the court?' The officials answered, 'Haman is out there.' 'Bring him in,' the king said. Esther 6:4 - Modern Text Bible

(Haman arrives to ask for Mordecai's death, but the king has something else in mind.)