One of the greatest archaeological riddles—and one of the grossest academic omissions—of our time is the untold story of the parallel ruins left by two seemingly unrelated ancient civilizations: the ancient Mayans on one side of the Pacific Ocean and the ancient Balinese on the other. The mysterious and unexplained similarities in their architecture, iconography, and religion are so striking and profound that the Mayans and Balinese seem to have been twin civilizations—as if children of the same parent. Yet, incredibly, this mystery is not only being ignored by American scholars, it’s being suppressed. What does archaeology have to do...