In April 1909, Smithsonian explorer G.E. Kincaid made an amazing discovery! A cave within the Grand Canyon containing artifacts and mummified remains of an ancient civilization. He described the artifacts as being "Oriental or Tibetan" in origin! Today, the Smithsonian denies and reects Kincaid's story as a hoax and says the cave and its contents never existed. Is Kincaid's Cave real? Does the Grand Canyon hold evidence that ancient civilizations came to the Americas centuries before Columbus? Listen to the relaunch episode of Dark Matters and decide for yourself!