Picture this: you are wearing a stunning, floor-length red gown, diamonds sparkling under grand auditorium lights, telling thousands of cheering people that they are part of a financial revolution. That was Dr. Ruja Ignatova in her heyday—the charismatic “Cryptoqueen” who promised that OneCoin was going to be the “Bitcoin killer.” But behind the glitz, glamour, and soaring promises lay a massive Ponzi scheme. Then, in October 2017, she boarded a flight from Sofia to Athens and simply vanished off the face of the earth, taking billions of dollars in investor funds with her. To this day, the Ruja Ignatova Disappearance remains one of the most baffling and high-stakes white-collar mysteries…