The echo of the mop handle striking the polished marble reverberated through the sixty-fourth-floor boardroom like a rifle shot.

The silence in the narrow hallway was absolute, broken only by the low rumble of the ancient service elevator motor behind us.

Pendelton stepped closer, his knuckles white around the grip of the pistol. "You thought you were so clever, Victoria. You and your broken little girls and your trash-collecting doctor. Did you really think you could take my legacy from me?"

Victoria didn't back down. She stood tall, shielding the drive behind her back. "Your legacy is built on embezzlement, Arthur. You stole from the pension funds. You tried to ruin my family."

"Business is war!" Pendelton shouted, his voice cracking with madness. "And in war, the weak get crushed! Hand over the drive, or I swear to God I’ll leave both of your bodies in this shaft and burn the floor to the ground!"

I took a slow, deliberate step forward, placing myself between the gun and Victoria.

"Back off, doctor," Pendelton sneered, shifting the barrel to my forehead. "You're not a hero. You're a failed physician who couldn't even save his own wife. You want to die for a family that isn't even yours?"

"You're right about one thing, Arthur," I said softly, keeping my eyes fixed entirely on his face, watching the micro-expressions of his facial muscles. "I am a doctor. And as a doctor, I spent fifteen years studying human reflex action under high adrenaline."

"What the hell are you talking about?"

"I'm talking about the fact that your trigger finger is twitching because your sympathetic nervous system is overloaded," I said, my tone as cold and analytical as a surgical scalpel. "Your heart rate is over one hundred and sixty. Your peripheral vision is narrowed. Which means you didn't notice what's behind you."

"Nice try—"

CLANG!

A heavy industrial floor buffer, completely unmanned, came roaring down the slick, wet hallway behind Pendelton at maximum speed.

Harper had accessed the automated building maintenance systems through the building's Wi-Fi network, overriding the safety limits on the floor-cleaning robots. The two-hundred-pound steel machine slammed into the back of Pendelton’s knees with brutal force.

Pendelton shrieked as his legs were swept out from under him. He crashed hard onto the marble floor, his gun flying from his hand and skittering down the dark corridor.

The two tactical guards momentarily turned their weapons toward the rogue cleaning machine.

It was the only opening I needed.

I lunged forward, closing the distance in a fraction of a second. Using a classic disarming technique I’d learned during my trauma residency training for handling violent ICU patients, I grabbed the first guard’s wrist, twisting it inward while driving my elbow directly into his solar plexus. He collapsed, gasping for air.

The second guard swung his rifle stock toward my head. I ducked beneath the arc, grabbed a sixty-pound industrial mop bucket full of dirty water sitting near the elevator, and slammed it directly into his chest. The heavy plastic bucket shattered, dousing him in water and chemical detergent, sending him slipping and crashing violently onto the slick floor.

"Victoria! In the elevator! Now!" I yelled.

She didn't hesitate. She scrambled into the narrow service cage. I leaped in right after her and pulled the heavy manual iron gate shut just as Pendelton scrambled to his feet, grabbing his dropped pistol.

BANG! BANG!

Two rounds slammed into the reinforced iron gate, sparking blindingly off the metal bars, but the heavy cable pulled us down rapidly into the dark shaft, escaping the danger zone.

Victoria dropped to her knees on the elevator floor, clutching the hard drive, her chest heaving as adrenaline surged through her veins. She looked up at me, covered in plaster dust and floor detergent, her eyes wide with shock.

"Where... where did you learn to do that?!" she gasped.

"Emergency room call shifts in Chicago," I breathed, leaning against the elevator wall, trying to catch my breath. "You’d be surprised how aggressive family members get when you tell them visiting hours are over."

A static-filled cheer erupted from my earpiece.

"WE GOT HIM!" Chloe yelled over the radio. "Mom! Nathaniel! Police units just pulled up to the front entrance! I sent the building security footage of Pendelton firing his weapon directly to the NYPD precinct commander!"

"Good work, Chloe," I smiled, letting out a long, exhausted sigh. "What about Harper?"

"Harper is currently ordering pizza to the penthouse using Pendelton’s credit card number," Chloe replied casually. "She said we earned extra pepperoni."

Victoria let out a loud, hysterical laugh that turned into a quiet sob of overwhelming relief. She reached out and grabbed my hand, squeezing it tight.