Esther 6:12 (ESV)

12 Then Mordecai returned to the king’s gate. But Haman hurried to his house, mourning and with his head covered.

We are not told of Mordecai’s feelings regarding these strange events, only that he returned to the king’s gate. In the meanwhile, Haman was so overcome with agitation that he covered his head and rushed home. In the ancient Near East, to cover one’s head was a sign of deep-felt grief (see 2 Samuel 15:30; Jeremiah 14:3).