Xue Mo's novel "Curses of the Kingdom of Xixia" presents a rich tapestry of the history, religion, lore, and customs of a region in present-day northwestern China. During its heyday, the Sino-Tibetan kingdom of Xixia (pronounced see-sia; 1038–1227), also known as the Tanguts, rivaled the Song dynasty (960–1279) of China and boasted a cavalry so formidable that the Chinese paid tribute to it to maintain peace.