Given the historical context and the evocative title A Tale of Red Pekin could explore themes related to the sociopolitical landscape of China possibly during the early 20th century or another period of upheaval. The use of Red in the title may hint at connections to the Communist revolution political strife or other transformative events in Chinese history. Constancia Serjeant's work would likely reflect her perspective and insights into the cultural and historical milieu of China providing readers with a narrative that blends personal stories with broader societal changes. The novel might feature characters navigating challenges related to identity tradition and modernity against the backdrop of significant historical events.