Als geopolitischer Stratege und enger Berater von Sun Yat-sen während der Revolution von 1911, befasste sich Lea in seinen Schriften mit China und der Geopolitik. Zwei seiner Bücher prophezeiten einen Krieg zwischen Amerika und Japan. Sein weiteres Werk ist ein historischer Roman, der in China angesiedelt ist.
The Vermilion Pencil is a romance novel set in rural China, depicting the relationship between a French missionary and a Chinese Viceroy's wife. Written by American author Homer Lea, it offers a vibrant portrayal of life in China and features unique characters. Originally titled The Ling Chee, it garnered critical acclaim upon release.
The book provides a geopolitical and strategic analysis of the British Empire's state in 1912, highlighting the factors leading to its impending dissolution. Through insightful commentary, the author critiques the empire's conditions and the global dynamics at play, showcasing a deep understanding of historical and political trends. This work serves as a prescient examination of the challenges faced by the empire, offering a compelling forecast of its decline.