What is the context for the question?
The weather at that point was bright and sunny. He described how positive the people were around him and how their positive was infecting him. This is quite the opposite of what Shelley sets the novel. The theme of the novel is supposed dark and gloomy.
<span>It is appropriate to break the rule that
requires subjects joined by and to use a plural verb when: the two
subjects separated by and refer to the same person or thing. Examples
are: Peanut butter and jelly is my favorite sandwich. Red beans and
rice is my mom's favorite dish. </span>