Emeritus Professor Roger Des Forges’s book, The Mythistorical Chinese Scholar-Rebel-Advisor Li Yan: A Global Perspective, 1606-2018 (Brill), examines the puzzle of Li Yan, a Chinese scholar who advised the rebel Li Zicheng (1605-1645), and helped him to overthrow the Ming, only to die at his hands. For more than three centuries, Li Yan’s identity and even existence were seriously questioned. Then, in 2004, there was discovered a genealogical manuscript which includes a Li Yan (1606-1644). He now appears to be the principal historical reality behind the Li Yan story, which became a powerful metaphor for the rise and fall of Li Zicheng’s rebellion.