Final answer:
Without the context of the specific literary work, 'what power does Mapes give Lou?' is a question that generally involves the transfer of authority, responsibility, or decision-making from one character to another within a novel or story.
Step-by-step explanation:
The question 'what power does Mapes give Lou?' refers to a character dynamic in a piece of literature, likely from a novel or a short story. To provide a detailed answer, it would be important to know the context of the novel which features the characters Mapes and Lou. However, without this specific information, the question can be generally addressed by exploring common themes in literature where one character gives another character 'power.' This concept often involves the transfer of authority, responsibility, or freedom to make decisions. For example, in many stories, a senior character like a boss, parent, or leader may give a subordinate character like an employee, child, or follower some degree of power by entrusting them with a task, decision-making authority, or leadership over others.