What is the fine-grained topic of the following text: (ii) One fantastic adventure follows another—a technique Carroll would later employ in Alice and MacDonald in The Princess and the Goblins—wherein Kingsley rails against the wretched plight of Victorian sweeps (considered the most oppressed, degraded, and tortured children in English society), includes cameos from nature (such as the activities of various insects), and preaches the possibility of redemption (even for a brute like Mr. Grimes). Only return the topic.
Analysis of narrative techniques in literature, with focus on the use of adventure and social commentary.