Alarms blared through Nova City, shattering the serenity of its neon-lit streets. In the heart of Prism Corps HQ, a holographic map flickered ominously. Commander Lyra Nova, her face etched with grim determination, addressed the assembled heroes."Intel confirms Xanathar Prime has returned," she announced, pointing to a menacing red blip that pulsed near the Andromeda Galaxy. "He's not alone. Scans indicate a massive Xandrossian armada, powered by an unknown energy source exceeding anything we've encountered."A palpable tension filled the room. Astra Blaze, Prism Prime and leader of the Guardians, stepped forward, her fiery aura pulsing with barely contained power. "Vega, can you identify this new energy source?"Vega Specter, the stoic master of the electromagnetic spectrum, shook his head. "Negative. It's unlike anything in the Galactic Archives. My spectral analysis is yielding nothing."A fist slammed onto the table. Orion Shield, the newly recruited Centurion with the Celestial Prism, growled, "Coward hides behind his fleet. Let's go take him to the stars!"Aurora Flux, the enigmatic wielder of the Cosmic Prism, materialized beside him, her calm voice a stark contrast to his fervor. "Patience, Orion. We need a plan. Xanathar wouldn't be this brazen without a trump card."Lyra nodded. "Astra, gather the Centurions. Prepare for immediate deployment. Orion, Aurora, you'll flank him with your advanced abilities. Vega, focus on disabling that new energy source. Cygnus…" she trailed off, a flicker of worry crossing her gaze.Cygnus Vortex, the enigmatic master of gravity, remained silent, his expression unreadable. Ever since his encounter with Nebula Vortex, the rogue Prism Corps member, whispers of doubt had swirled around him."Cygnus," Astra repeated, her voice firm. "We need your teleportation skills to get us close enough to engage."Cygnus met her gaze, a flicker of defiance igniting in his eyes. "I…" his voice wavered, then steeled. "Very well. But consider this a test of trust, Astra. Betray it again, and the consequences will be dire."With a surge of gravitational energy, Cygnus vanished, reappearing moments later on the bridge of Xanathar's flagship, the Shadow Reaver. The tyrant, a hulking figure cloaked in obsidian armor, turned, a cruel smile twisting his lips."Greetings, Guardians," his voice boomed, amplified across the bridge. "I see you've decided to grace me with your presence. But this time, you face not just the Xandrossian armada, but the power of a captured Quasar core!"A sphere of swirling energy pulsed behind Xanathar, its light an unnatural purple that cast grotesque shadows across the bridge. Panic surged through the Syfon Warriors stationed around him, their energy reserves draining rapidly in the Quasar's presence."A Quasar core?" Astra's voice crackled through the comms. "He's siphoning the energy of a freaking collapsed star!"Back in Nova City, the alarm clock in Jace Swift's quarters blared. He scrambled to his feet, a knot of dread tightening in his stomach. This was his first major deployment as a Prism Corps pilot, and the enemy was Xanathar Prime himself.Strapping into his sleek Prism Glider, Jace joined the growing fleet streaking towards the Andromeda Galaxy. Fear gnawed at him, but the beacon of hope he saw in Astra's eyes during the briefing fueled his resolve. Today, he wouldn't just be a pilot. Today, he would become a Guardian.High above the battlefield, the heroes prepared for a clash unlike any they'd faced before. The fate of the galaxy hung in the balance, and the battle for the Shadows of the Void had begun.