When my husband smiled and handed our bank card to his so-called “close friend,” the entire welcome party applauded as if nothing was wrong.

The cold steel of Vance Sterling's tactical mercenary crew glinted in the flickering blue light of the server rack. Marcus acted with instinct honed by decades of law enforcement, shoving me violently behind a stack of wooden architectural models as he raised his Glock and fired two quick shots toward the shadows.

BANG! BANG!

The deafening gunshots shattered the quiet warehouse, the muzzle flashes illuminating the dusty air like lightning strikes.

"Down!" Marcus screamed, grabbing Sarah by her collar and dragging her down behind the concrete barrier alongside me.

An instant barrage of suppressed gunfire chewed through the wooden models above our heads, showering us with splinters and sawdust. Thwip-thwip-thwip-thwip! The high-velocity rounds punched through paper, wood, and drywall, missing my head by mere inches.

"Marcus!" I gasped, clutching my ears, my heart hammering against my ribs like a trapped bird. "Who are these people?!"

"Sterling's private security group," Marcus growled, dropping his empty magazine and slapping a fresh one into his Glock with a sharp clack. "Professional mercenaries. They aren't here to arrest us, Olivia. They're here to clean the slate."

From across the dark warehouse, Vance Sterling’s cultured, aristocratic voice echoed over the sound of dying server fans.

"Olivia! Be reasonable!" Sterling called out, his tone as calm and pleasant as if he were discussing a contract over lunch at the Seattle Yacht Club. "Arthur Bennett was a fool who let his idiot son run wild. But Project Glasshouse belongs to a group of men far more powerful than Arthur. We cannot allow that thumb drive to leave this building."

"You killed Rachel!" Sarah yelled from behind the barrier, clutching the silver thumb drive tightly to her chest. "You poisoned her in the holding cell!"

"Rachel was a liability who didn't know when to close her mouth," Sterling replied casually. "She thought she could use our data to extort small-time developers. She didn't understand the scale of the game we are playing. Now, Olivia... step out with your hands up, hand over the drive, and I give you my word as a gentleman that you will walk out of here alive. You can take your fifty-one percent of what's left of the firm and move to Europe."

"Don't listen to him, Olivia," Marcus whispered, checking his sightline around the concrete pillar. "He’s going to kill all three of us the second he gets that drive. There are no witnesses in his world."

"I know," I said, my mind racing at breakneck speed.

Eleven years of managing complex architectural logistics had trained my brain to analyze physical spaces under extreme pressure. I closed my eyes for two seconds, recalling the original structural blueprints of 1142 Eastlake Avenue that I had reviewed five years ago.

This wasn't just a warehouse. It was a former industrial boiler facility built in the 1940s.

"Marcus," I whispered urgently, grabbing his arm. "The main natural gas line for the old heating system run directly behind that server rack. The emergency shut-off valve was removed during the 2018 renovation, but the main pressurized line is still live."

Marcus looked at me, his eyes widening as he caught my train of thought. "If I puncture that high-pressure gas main..."

"The room fills with volatile natural gas in less than thirty seconds," I finished. "One spark from the server electrical panel, and this entire floor becomes a bomb."

"That's insane, Olivia!" Sarah hissed, terrified. "We'll burn alive!"

"Not if we're in the old coal chute behind the sub-floor," I replied, pointing to a rusted iron hatch partially hidden beneath a pile of discarded blueprints near our feet. "It leads directly out to the Lake Union drainage canal."

"You have thirty seconds to decide, Olivia!" Sterling’s voice called out from the darkness, closer this time. "My men are moving in!"

"Cover your ears!" Marcus commanded.

He leaned out from behind the concrete pillar, took careful aim at the heavy steel gas pipe running vertically behind the server rack, and squeezed the trigger three times.

BANG! BANG! BANG!

The heavy 9mm rounds slammed into the aged steel pipe. A deafening, violent HISS erupted through the warehouse as pressurized natural gas began roaring out of the ruptured pipe like a jet engine.

"What the hell?!" one of Sterling's mercenaries screamed as the distinct, pungent smell of mercaptan filled the air instantly. "He hit the gas line! Fall back! Fall back!"

"Shoot them!" Sterling roared, his calm aristocratic demeanor vanishing into pure, unadulterated panic. "Kill them now!"

"Go! Go! Go!" Marcus shouted, grabbing the rusted handle of the floor hatch and yanking it open with a metallic shriek.

Sarah slid down the steep, narrow concrete chute first, disappearing into the pitch-black tunnel below.

"Olivia, get in!" Marcus ordered, firing two more suppression shots into the darkness to keep Sterling's men at bay.

I didn't hesitate. I threw myself into the dark chute, sliding at terrifying speed down the smooth, damp concrete tunnel. The smell of rotten eggs and raw gas vanished, replaced by the cool, muddy scent of the lake.

Behind me, I heard Marcus jump into the chute just as a brilliant, blinding orange flash illuminated the opening above us, followed by a blast wave of absolute thunder.

BOOM!

The explosive ignition of the natural gas ripped through the warehouse above, sending a roaring wave of heat and force down the chute behind us. The heavy iron hatch slammed shut from the pressure, sealing the inferno above.

I shot out of the end of the drainage pipe, tumbling onto the muddy, rain-soaked banks of Lake Union, rolling twice before coming to a stop in the shallow, cold water.

A second later, Sarah and Marcus hit the mud beside me, coughing and gasping for air.

We scrambled to our feet and looked up at the hillside.

1142 Eastlake Avenue was engulfed in a massive pillar of bright orange fire and black smoke, fire alarms wailing in the distance as emergency sirens began to echo across the city.

Sarah fell to her knees in the mud, gasping for breath, but her hand was still clenched tight around the silver thumb drive.

Marcus wiped soot and mud from his face, looking at the burning building, then turning to me with a look of stunned respect. "I retract my previous statement, Olivia. You aren't just an accountant. You're a damn terrifying woman."

I wiped the cold lake water from my eyes, watching the flames consume the secrets of Project Glasshouse.

"We're not finished, Marcus," I said, my voice cold and unyielding. "Sterling was just the lawyer. We still have to deliver this drive to the one person in Seattle who can actually use it."