As curious as he was, Nero approached the door with caution, even though nothing inside the Vault had been dangerous yet. He approached the slightly ajar door and pulled it open, revealing behind it another small room, as well as the door to a massive vault.
The walls were sleek and metallic, reflecting a cold, sterile light. There were a few things in the room, a table, a cabinet, a chair, but Nero's eyes were attracted to the vault at the end, a silent sentinel of whatever secrets lay hidden behind.
The vault door was circular, fashioned from a dark alloy that gleamed dully in the low light. The centrepiece was a giant wheel that dominated the door's surface, its design unmistakably reminiscent of a ship's helm. Around the wheel, spaced evenly like the points of a compass, were six keyholes shaped remarkably similar to the one Nero used to open this room to begin with.