The Mystery of Sublevel 9

Leo had worked at the Sterling Research Institute for exactly three months, mostly spent filing digitizing records and fetching lukewarm coffee for the senior researchers. The building was a labyrinth of glass and steel, towering thirty stories into the city skyline. However, the true work—the projects whispered about in the breakroom—happened beneath the ground. There were eight known basement levels, each more restricted than the last. But as Leo stood in the dim lighting of the lowest accessible maintenance corridor, he found something that wasn't on any floor plan.

At the very end of a dead-end hallway, tucked behind a heavy velvet curtain that seemed strangely out of place among the industrial pipes, stood a single elevator door. It was made of a dull, brushed bronze that didn't match the modern chrome found elsewhere in the building. There were no lights, no floor indicators, and, most curiously, the elevator to Sublevel 9 had no buttons. No up arrow, no down arrow, and certainly no keypad to enter a floor number. It was simply a silent, impenetrable slab of metal embedded in the stone wall.