The monster notices the care and concern the family has for each other, and he senses that there is a mood of despair among the younger family members. The family suffers from poverty and a lack of food. Originally a well-to-do family from France, the De Lacey's have been exiled from France to Germany. The monster learns the French language from the family and practices those words by himself. Desiring to keep his cottagers happy, the monster becomes an aid to the family by secretly hauling wood to the cottage and performing repairs, all under the cover of darkness. He begins to follow a routine of daily activity and time passes from winter to spring.
I think the author established anger as the mood in the excerpt. It is noticeable how the character is furious (for whatever reason) and shows her emotions by tearing that thin handkerchief into ribbons.
