Here, deep beneath the city, in a chamber of stripped concrete where the sun has never once intruded, the herd gathers. They come alone and in small bands, drawn from across the sleeping metropolis by a signal none of them can name, a pulse felt in the sternum long before it is heard.
And now they descend, one by one, past a lone sentinel at the threshold who studies each arrival and, by some inscrutable law of the species, waves most of them away.
Observe the fortunate ones who pass. Inside, the light has been all but abolished, replaced by brief violent flashes that freeze the herd mid-motion, hundreds of specimens facing the same distant altar of speakers, moving in near-perfect unison to a rhythm that does not vary, will not resolve, and shows no sign of ending.
This is not courtship, though courtship happens at its edges. This is something older. The individual dissolves. There is only the many, breathing as one lung, sweating as one hide, worshipping the relentless four-beat heart of the dark.
Watch now this single subject, eyes half-closed, arms loose, entirely surrendered. She has not spoken in three hours. She does not need to. She has traveled far, waited long, been judged worthy, and given herself wholly to the pulse, and she will remain here until the rhythm at last releases her.
And it will not release her tonight. For this herd does not scatter at dusk, nor at dawn. They will dance through the sunrise they cannot see, and through the next, emerging blinking into a Sunday afternoon two seasons removed from where they entered, having outlasted the very daylight itself. Extraordinary. To survive the winter, some creatures sleep.
This one simply refuses to stop.