The heavy iron door of the abandoned subway terminal groaned as Ethan threw his weight against it, forcing it shut. The automatic hydraulic locks clicked into place with a definitive, ringing echo that sealed us inside the dark vault.
We were no longer in the freezing, toxic concrete tunnels of the precinct. We were standing inside a massive, hidden underground bunker carved directly into the bedrock beneath the city's old financial district.
I blinked against the sudden brightness as automated, warm LED lights hummed to life along the vaulted ceiling. The space didn't look like a survival shelter; it looked like a million-dollar minimalist penthouse. The floors were polished grey concrete, the walls were lined with expensive mahogany panels, and the air filtering through the high-tech
