In 1703 a curious character arrived in London claiming to be a native of the island of Formosa. These days Formosa is better known as Taiwan, but in early 18th century it was a place barely understood by most Europeans. The Formosan visitor, George Psalmanazar, was eager to teach his English hosts everything there was no to know about his home island. The only problem was that Psalmanazar was a fraud. He was a European who had never travelled east of Germany. He concocted elaborate tales about Formosa's history, politics, and religion. Psalmanazar even invented his own language, that was complex enough to pass as authentic. The oddest thing about this case was that Psalmanazar in no way disguised his appearance.He was a light-skinned, blond haired, European who was able to convince most people he encountered he was from East Asia. How did he get away with this? Tune-in and find out how naughty priests, Halley's comet, and the hearts of 20,000 sacrificed children all play a role in the story.