A young Englishman, Rex, and his Chinese friend Ah Lo find themselves living in turbulent times in China. Thousands of years of imperial rule are close to an end when an anti-imperial uprising threatens the Qing dynasty. Resentment against western powers lead a group of Chinese to form a militia known as the Boxers. When the Boxers threaten Christian missionaries, Rex's cousins, and other foreigners, many nations must band together to have any hope of resisting the threat. Rex and Ah Lo join the effort to relieve the legations. Will the legations hold out until relief appears. Will Rex and Ah Lo be able to save Rex's cousins? Find out the answer to these questions and more in G.A. Henty's With the Allies to Pekin.