The hero of Dark Diamond is Lord Shayista Khan, the Mughal Viceroy of Bengal, who in 1685, during Aurangzeb's rule, was the most powerful man on Earth. Under Lord Khan's governance, Bengal became the epicenter of commerce and culture - a veritable treasure chest with greedy enemies: Maratha warriors, Arakan rajas, Hindu zamindars, fanatic Mullahs, a diabolical Pir with occult powers and the Eas…