Mordecai hears that the Jews are going to be killed and it's all his fault. He runs around wailing in sackcloth and ashes, as do all the other Israelites, rather than, you know, whittling spears or something intelligent. Esther hears about the sackcloth and tries to send her uncle some clothes, proving the apple didn't fall far from the stupid tree, and is surprised when they get sent back. Only then does she send her eunuch out to find out what happened. He explains it and tells the eunuch to ask Esther to intervene with the king.
Esther immediately starts whining that only people who've been summoned by the king can meet with him, and people who try to sneak in get killed. Would that had been the case for the Salahis. She, just two chapters ago the hottest virgin in the kingdom, hasn't been called for 30 days.
He gets nasty in reply, saying her status won't protect her and if she won't speak up, another force will intervene and save them, only her house will go down in flames. Esther believes him and asks him to tell the Israelites to fast for three days while she works up her courage to go to the king.