Solid, sturdy earthen rocks lined both sides of the riverbank.
As several officers in black uniforms approached, a section of the rock shifted slightly, revealing a downward entrance. Clearly familiar with this hidden passage, the three men took it in stride and quickly jumped down the exposed hole. A minute or two later, after navigating a labyrinthine tunnel, they finally reached their destination.
Heaven's Origin, General Inspectorate Center.
The title was engraved on a thick iron door. Next to it, an identity verification device emitted a faint blue glow. Seeing this, the leading man in black pulled down his mask and quickly scanned his credentials. Soon after, following a rapid series of BEEPs, the heavy door slowly opened, revealing what lay hidden inside.
It was a massive natural cavern—six hundred meters long, five hundred meters wide, and thirty meters high!
