The adrenaline from the drone attack hadn't even fully subsided when Mr. Han led Leo deep into the sub-basement of the estate. They passed through three biometric security gates before arriving at a massive, circular vault. As the heavy steel door hissed open, Leo gasped. It wasn't full of gold or cash; it was full of servers, holographic displays, and a map of the world's financial markets flickering in real-time. 'This,' Han said, 'is the true power of the Black Dragon.'