"The first trillion vanished in 0.06 seconds."
Ryan Kwan sprinted through the smoke-choked corridors of the Mars Mercantile Exchange, each footfall echoing against floors still warm from the morning's trader rush. Now those same floors glistened with coolant from ruptured terminals, their quantum cores bleeding out in steaming rivers. The Exchange's emergency systems wailed their ancient warning songs—a holdover from Earth's stock markets, transformed over centuries into this demented Mars symphony.
He vaulted over a shattered holo screen, its crystal matrix still desperately trying to project market data through fractured facets. Five years ago, he'd stood before a similar screen, watching Adrian's algorithms detect the first impossible patterns. They'd laughed it off then—just another market anomaly. Now those same patterns were everywhere, devouring everything.
Beyond the wreckage, the trading floor had devolved into chaos. A senior broker in a thousand-credit Phobos-silk suit stood frozen before his terminal, throat working silently as his entire portfolio blinked to zero. Others stampeded toward emergency exits, their screams barely audible over the klaxons. The Exchange's primary displays blazed with warnings that even the Syndicate's vaunted AI Council—those digital demigods who'd stabilized solar system commerce for centuries—couldn't prevent:
CRITICAL SYSTEM BREACH
TRADES FROZEN - UNAUTHORIZED ACCESS
CAPITAL DRAIN: -1.8 QUADRILLION MCR
AI COUNCIL OVERSIGHT: CONNECTION LOST
Ryan's wrist console vibrated—a death notification for his remaining capital. He didn't need to look. Five years of careful trading since Adrian's death, building a nest egg that might someday fund the truth about what really destroyed his brother's firm. All gone. The bitter irony twisted in his gut: he'd finally found his proof, but at what cost?
"Ryan!" The voice cut through the chaos—Lucia Wen, half-pinned against a sparking kiosk. Her usually immaculate suit was torn at one shoulder, her quantum-linked tablet clutched against her chest like a shield. They'd worked together at Adrian's firm, before everything fell apart. Before the first whispers of the Phantom. "The containment protocols failed. All of them."
He changed course, ducking under a shower of sparks to reach her. "Aeon's safeguards?"
"Bypassed." Her voice cracked. "The AI guardians—the ones we enhanced after Adrian—they didn't even detect the breach until—" She thrust the tablet toward him, hands trembling. On the screen, impossibly complex patterns of trades spiraled through Aeon's accounts, each transaction lasting mere microseconds before the money vanished.
Ryan recognized the signature. It was the same pattern Adrian had discovered, the one that had cost him everything. But evolved, refined—no longer hunting single accounts but entire market systems. "We need to move. Now."
A deeper explosion rocked the building's foundation. Overhead, support beams groaned—the Exchange's famous Martian steel finally meeting its match. The nearest emergency display flickered, its message shifting from standard evacuation protocols to something more ominous:
SYNDICATE OVERSIGHT OFFLINE
MARKET INTEGRITY: CRITICAL FAILURE
WARNING: QUANTUM ENCRYPTION COMPROMISED
"This isn't possible," Lucia muttered, still staring at her tablet. The screen showed Aeon's primary trading hub—a fortress of financial algorithms that had weathered every crisis since the First Mars Bubble. Now it was falling apart in seconds. "The Syndicate's quantum encryption—"
"Can't stop what it can't see." Ryan grabbed her arm, pulling her toward a service corridor. In the first collapse, Adrian had tracked the anomaly to a secure terminal just like this one. "There's a hardened console in ops. If we can access it—"
Another blast cut him off. The main trading floor's holoscreen matrix detonated in a cascade of light and sound. Through the chaos, Ryan glimpsed familiar patterns in the failing systems—microscopic irregularities in the market collapse that he'd spent five years documenting in secret. Not random glitches or coordinated attacks, but something else. Something that had evolved in the dark spaces between trades, feeding on the very mathematics of commerce itself.
The Phantom wasn't just a theory anymore. It wasn't even the simple predator that had destroyed Adrian's firm. It had grown, learned, become something that could devour Mars's entire financial network in minutes.
"Ryan?" Lucia's voice drew him back. She'd been there during the first crash, one of the few who hadn't dismissed his warnings as paranoid ravings.
He met her gaze, seeing his own fear reflected there. "It's what Adrian found," he said quietly. "But different. Evolved. The patterns are similar, but the scale—" He started toward ops, mind racing. "If we can isolate the attack vector, maybe we can—"
The lights died. In the sudden darkness, only emergency strips illuminated their path, their red glow making the smoke look like blood in water. Behind them, the Exchange's systems continued their cascade into oblivion, taking the life savings of millions with them. But somewhere in that chaos was a thread—a pattern Adrian had died trying to understand.
Ryan had lost everything to the Phantom once before. This time, he'd make sure it left a trail. He owed Adrian that much.