Helmer thinks that Krogstad will get angry at him and damage his reputation , yet he is sure that he will be able to face him ; he calls him a starving quill-driver's vengeance . Helmer says: " ..... I shall have both courage and strength if they be needed".
The audience knows that Krogstand will take vengeance against Mora. This is reflected through Nora's words: " You don't know what that letter can bring upon us" , and also through the attitude the writer has described: horror-stricken voice.
By saying that, he indicates that they know each other very well and that without talking, they have similar ideas and outlooks on the world in response to certain situations.
