"Arriving at Level 4. Please prepare for the disinfection procedure!"
The robotic voice reverberated through the spacious elevator, making its four occupants shuffle towards the door impatiently. Once the elevator came to a stop in its descent, the doors opened up to reveal a wide, brightly lit corridor.
The disinfection process took more than a minute at this level of the subterranean city, run by highly intricate digital devices and consisting of several invasive steps. By the end of it, the four visitors were reeking of chemical mixtures.
But this was a common scent to them as denizens of the subterranean city. In these well protected shelters, you couldn't spend a day without getting sprayed by it.
