A seven-year-old girl walked into my police station and whispered, “Daddy made my sister swallow something.” Then she pulled an empty medicine syringe from beneath the sole of her shoe, explaining that her father searched their pockets but never checked there. When I traced the identification code, his name appeared in the pharmacy system—and seconds later, every station door locked from the inside.

I had seconds to evaluate the tactical reality.

If I shot Vance, the automated system he had rigged would asphyxiate the children inside the vault. If I opened the door blindly, I surrendered control of the precinct to a man whose desperate obsession had already pushed his daughters to the brink of death.

I made a calculated choice.

“Step back to the far wall,” I commanded. “Put the silver vial on the center table. Disarm the atmospheric valve on your terminal, or we both die right here.”

Vance stared at me through the goggles of his respirator, calculating the odds. He saw that my stance hadn't wavered. He tapped a rapid sequence into his wrist-mounted interface. The yellow maintenance light on the cell corridor wall shifted back to a steady green.

He placed the silver vial carefully onto the surface of the conference table and backed away three paces, holding his hands clear of his sides.

I stepped into the room, keeping my sightline locked on him, and picked up the silver vial. It was labeled with the exact matching registry batch number: 884-Delta-B.

“How is it administered?” I demanded.

“Sublingual or oral,” Vance said, his voice tightening. “Directly under the tongue. It neutralizes the active toxicity and locks the protein sequence. You have less than five minutes before her cardiovascular system collapses.”

I didn't trust him to do it. I took the vial, stepped back into the holding corridor, and locked the briefing room door behind me, trapping Vance temporarily inside the administrative zone with a reinforced barrier.

I approached the cell door. “Emma! It’s me. Passcode.”