I've been to the mountaintop. The hacking of Mt. Gox, once the world's biggest Bitcoin exchange, may seem like an old story—it's anything but. Normally, when a company goes through a bankruptcy, it's a fairly well-worn process. In the case of Mt. Gox, there's a major wrinkle: the astounding appreciation of its leftover cryptocurrency assets. As Fortune's Jen Wieczner investigates in the following caper, lingering questions about what will happen to the jackpot the exchange stumbled upon.