The address led him to an abandoned power substation in the industrial district of Essen. Rust streaked the concrete walls like ancient wounds. Inside, however, was a cathedral of silence. Black velvet draped every surface. A single, polished-steel chair faced two objects that made Julian stop breathing.

Lisette lifted the tonearm. The silence returned, heavier now.

The first sound was not a note. It was a pressure wave, a subsonic thrum that bypassed his ears and settled in his sternum. Julian felt his heartbeat sync to it, then rebel. Then the midrange horn awoke.

The Avantgarde Extreme 44L stood over six feet tall, each one a trinity of twisted, logarithmic flares machined from a single billet of aerospace-grade aluminum. The midrange horn alone could swallow a man’s torso. The tweeter was a ruby-lipped vortex the size of a dinner plate. And the bass—fourteen-inch woofers, but not in boxes. They were mounted in open baffles of carbon fiber, their rear waves free to roam the room like captive ghosts.

He tried to stand. His legs refused.

She gestured to a second chair. In it sat a Dictaphone, its red light already glowing.

“Stop,” he whispered.

Then the voice. A contralto, singing a language Julian didn’t know. The horn threw her voice not into the room, but through it. He could locate her lips, her tongue, the wet click of her palate. He heard the room she had sung in—a stone chapel, damp, with a single flickering candle. He smelled the wax.

“Write your review,” she said. “Now. While your ears still remember what it felt like to be human before you heard them.”