Trina Sieppe. At the start of the novel, we are introduced to McTeague's mundane routine on a Sunday, encapsulating his simple pleasures in life, such as eating and drinking beer. After a heavy meal, he reflects on his past working in a mining community and his rise to becoming a dentist, albeit through less-than-traditional means. The introduction of Marcus Schouler, his friend, and later the arrival of Trina Sieppe, adds layers of complexity to McTeague's life, hinting at the brewing emotions and conflicts that will emerge as the story unfolds. McTeague's unremarkable life is disrupted by his growing affection for Trina, leading to potential tensions between him and Marcus, who has his own feelings for her. This opening sets the stage for a narrative rich with social commentary and psychological depth. (This is an automatically generated summary.)