The Echo Guardians had little time to bask in their recent victory. Within days, they discovered traces of renewed Null Order activity, scattered throughout the city like dark veins. The whispers were back, their agents slipping into the ranks of businesses, government offices, and even local communities. Echo City was under siege again, only this time, the enemy was even more insidious.

In a dimly lit room in the Guardians' base, Kei, Teri, Ignis, and their allies gathered to discuss their strategy. Rylan stepped forward, his voice somber.

"We've identified a new leader within the Null Order," he began, his face etched with concern. "Someone who's risen quickly, bringing the organization together even after our attack at Skyspire. They call him 'The Shade.' Rumor has it that he's a master of infiltration—he's recruited some of the most influential figures in the city to his side."

Selene turned her laptop to face them, displaying a series of documents and grainy photos. "We don't have much on him, but from what we've gathered, he's as elusive as they come. If we're going to dismantle the Null Order once and for all, we need to take him down."

Kei leaned forward, studying the screen intently. "So, where do we start?"

Rylan pointed to a red dot on the map. "The Shade is rumored to operate out of an abandoned district on the city's edge—the place they call 'The Forgotten Zone.' It's a place most people avoid... full of old factories and run-down warehouses."

Ignis crossed her arms, her gaze fixed on the map. "Sounds like the perfect hideout. But it also sounds like a trap."

Teri's eyes narrowed as he took in the details. "Then we prepare for the worst. We can't let the Null Order rebuild—not after everything we've fought for."