The Silence of Site 39

Previously

…"Responding to what?" I asked, my voice taut with apprehension. "To us," Chloe breathed, her face pale. "To our presence. It’s like… it's waking up." The pulsing intensified, accompanied by a low, guttural groan that seemed to echo from the very walls of the building. It wasn't a mechanical sound; it was something organic, something alive. My blood ran cold. We weren't alone. We had never been alone. The silence of Site 39 hadn't been an absence of noise; it had been the sound of something holding its breath, waiting. And now, it had exhaled.