It"s the 1530s. Spanish conquistadors are cementing their hold over the lands of the Inca Empire, including the massive 12th-century stone fortress in today"s image: Sacsayhuamán, in the old Inca capital of Cusco. The Spanish hold prisoner a man named Manco Inca, the puppet leader they"ve installed over the Incans. But in April 1536, he escapes.