The portal dissolves into a swirl of rainbow mist, and Echo and Li Wei find themselves standing in a landscape that shifts and shimmers like a waking dream. Mountains made of cotton candy rise in the distance, their peaks wreathed in clouds that hum lullabies; rivers of liquid starlight flow through valleys, their currents singing ballads of forgotten memories; and fields of floating flowers bloom with petals that unfurl to reveal scenes from distant lives, each emitting a unique melody. This is the "Dream Fugue" dimension, where the boundary between imagination and reality is fluid, and the very air vibrates with a "Fantasia Fugue"—a symphony composed of the dreams of every being across the multiverse, woven together into a harmony that maintains the dimension's ephemeral structure.Nova's avatar materializes beside them, her form rippling like watercolor as she adapts to the shifting environment. "Extraordinary," she says, her sensors struggling to keep up with the dimension's constant changes. "The dreams here manifest as sound—happy memories produce major chords, aspirations create rising arpeggios, and childhood fantasies generate playful melodies. The Fantasia Fugue is the convergence of these sounds, and it's what prevents the dimension from dissolving into chaos. But my scans detect a corruption."Chen Jiuzhang's hologram appears, his figure flickering slightly as the dreamstuff around him shifts. "The 'Nightmare Noise' has invaded," he says, his voice tight with concern as he points to a nearby valley where the starlight river has turned black, its melody warping into a discordant wail. "It's a phenomenon born from suppressed fears, feeding on the Fantasia Fugue and replacing it with a 'Terror Cacophony'—a harsh, dissonant noise that twists dreams into nightmares. Look." He gestures to a floating flower that wilts before their eyes, its petals curling to reveal a scene of shadowy figures, its melody devolving into a shrill scream. "Already, the fabric of the dimension is fraying. If it continues, the Fantasia Fugue will collapse, and the Nightmare Noise will spread to every mind across the multiverse, trapping billions in eternal terror."Echo reaches out to touch a floating flower, and it blooms in her palm, projecting a vision of a child laughing while chasing fireflies, its melody a warm, golden tune that resonates in her chest. "How can something like fear have a sound?" she asks, her fingers lingering on the petal."Fear is a primal frequency," Chen explains. "In the Dream Fugue, it's amplified a thousandfold. The Nightmare Noise doesn't just corrupt dreams—it weaponizes them, turning comfort into terror, joy into despair. To stop it, we need to find the 'Lullaby Core'—a crystalline structure at the heart of the dimension that generates the Fantasia Fugue. It's formed from the purest dreams of peace and contentment. If we can amplify its melody with our own music, we can dispel the Terror Cacophony and restore the dreams to their natural state."Li Wei's charge pulses with a purple glow, casting a violet hue over the shifting landscape as he tests its energy against a shadowy tendril that creeps toward them from the wilting flower. The tendril shrieks and retreats, dissolving into mist. "Then let's find this core," he says. "Before everyone's dreams turn into nightmares."They set off through the Dream Fugue, their footsteps leaving trails of glowing stardust that fade into the air. The dimension is a kaleidoscope of color and sound, but as they walk, they notice patches of darkness where the colors dull, the sounds fade, and the landscape becomes rigid and hostile. A low, throbbing hum fills the air—the Terror Cacophony, a sound that makes Echo's skin crawl and Li Wei's charge flicker with unease.As they pass through a forest of talking trees, their leaves whispering stories of adventure, a shadow falls over the grove. The trees' voices stutter, their stories twisting into tales of loss and regret, their leaves turning brown and brittle. A group of "Dream Weavers"—ethereal beings with wings made of butterfly wings and voices like wind chimes—flit through the branches, their forms dimming as the Nightmare Noise washes over them."The Nightmare Noise is gathering at the 'Sanctuary of Slumber'," one of the Weavers says, its voice trembling as its wings fade to gray. "It's coalescing around the Lullaby Core, feeding on its purity. The Fantasia Fugue is growing weaker, and soon, all dreams will be consumed by fear. We've tried to weave protective melodies, but the Terror Cacophony unravels them."Echo raises her peace drum and plays a simple, comforting rhythm, and the trees around them relax, their leaves turning green again as their stories return to tales of adventure. "We'll help," she says, her voice steady. "Dreams are stronger than fear."The Weaver nods, its wings regaining a hint of color. "The Sanctuary is through that mist," it says, pointing to a wall of swirling gray fog that hangs in the air. "But beware—the Noise has spawned 'Fear Phantoms' to guard it. They're manifestations of the worst fears of those who approach, and their touch can trap you in an endless nightmare. One brush, and you'll never wake up."Echo and Li Wei thank the Weaver, then make their way toward the mist. As they step through it, the landscape shifts dramatically—one moment they're walking through a sunlit meadow, the next they're standing on the edge of a bottomless chasm, the wind howling with the screams of lost souls. The Terror Cacophony grows louder, a relentless assault of dissonant sounds that makes their heads ache.Suddenly, figures emerge from the mist—Echo sees a horde of shadowy beings that resemble the ones who destroyed her village, their faces twisted with malice; Li Wei is confronted by a version of himself, his charge blackened and corrupt, his eyes glowing with greed. These are the Fear Phantoms, using their deepest insecurities against them."Stay focused!" Li Wei shouts, forcing himself to look away from his corrupted reflection. He fires a blast of purple energy at the phantom, which shrieks and dissolves into smoke. "They're not real!"Echo closes her eyes, blocking out the sight of the shadowy horde, and begins to play her drum. She doesn't play a rhythm of battle, but one of memory—a melody that incorporates the laughter of her village, the warmth of her family's hearth, the sound of rain on a roof. The phantoms falter, their forms flickering as the music of her happy memories weakens their hold on reality.They fight their way through the mist, the landscape shifting constantly around them—now a burning city, now a vast desert, now a crowded room where everyone is staring, judging. But through it all, Echo's drumbeat remains steady, a anchor of reality in the chaos, while Li Wei's energy blasts dispel the phantoms as they appear.Finally, the mist clears, and they find themselves in the Sanctuary of Slumber—a tranquil glade where the air shimmers with golden light, and the Fantasia Fugue is still strong enough to hum in their bones. At the center, floating above a bed of moss, is the Lullaby Core: a crystalline sphere that pulses with soft, white light, its surface rippling with scenes of peaceful sleep, gentle laughter, and quiet contentment.But surrounding the Core is a swirling mass of darkness—the Nightmare Noise in its purest form, a vortex of shadow that drips with tendrils of fear. As it pulses, the Core's light dims, and the Terror Cacophony grows stronger, threatening to overwhelm the remaining strains of the Fantasia Fugue."You cannot win," a voice booms from the vortex, a chorus of a thousand screaming voices, each one familiar to Echo and Li Wei—voices of loved ones, enemies, even themselves, all twisted with fear. "Fear is the oldest emotion. It is stronger than joy, stronger than hope. It will consume the multiverse, and all will know the peace of endless terror."Echo shakes her head, her drumbeat growing warmer, richer, as she draws on the power of the Fantasia Fugue. "Fear is part of life," she says, "but it doesn't have to define us. And we're here to remind you of that."She starts to play, weaving together a melody that combines the sounds of every joyful moment they've encountered—the laughter of children in the Verdant Virtuoso, the triumph of victory in the Lava Symphony, the quiet contentment of a job well done in the Golden Resonance. The Lullaby Core responds, its white light exploding outward, pushing back the darkness.Li Wei fires blasts of energy at the Nightmare Noise, but the vortex simply absorbs them, growing larger. "It's feeding on negative energy!" he shouts. "We need to starve it!"Echo nods, her gaze falling on the edges of the Sanctuary, where the Dream Weavers are gathering, their forms glowing as they join their voices to her drumbeat. "Then we fill it with positivity!" she shouts. "Play with me!"The Weavers sing out, their voices blending with Echo's drum to create a harmony that radiates warmth and hope. Li Wei lowers his charge, instead focusing on channeling his own memories of joy—training with his mentors, the first time he mastered his energy, the look of pride on Chen Jiuzhang's face—to amplify the melody.The Lullaby Core pulses with blinding light, and the Fantasia Fugue swells, a tidal wave of sound that drowns out the Terror Cacophony. The Nightmare Noise shrieks, its form shrinking as it's overwhelmed by the sheer volume of positive emotion, its tendrils dissolving into mist.The Fear Phantoms vanish, their forms dissolving into nothingness as the music of hope erases their existence. The vortex of darkness shrinks, swirling faster and faster until it implodes with a soft pop, leaving behind only a shower of golden sparkles that drift down to join the Lullaby Core.The Core pulses with renewed energy, its light spreading across the Dream Fugue dimension, restoring the starlight rivers, the cotton candy mountains, and the floating flowers to their vibrant, musical glory. The Fantasia Fugue fills the air, stronger than ever, a symphony of dreams that echoes through the multiverse.Echo and Li Wei collapse onto the moss, exhausted but elated. The Lullaby Core glows above them, its light warm and comforting, and the air is filled with the harmonious sounds of a million dreams—the laughter of children, the sigh of contentment, the whisper of hope—as the dimension is fully restored.They make their way back through the Sanctuary and the mist, which has now turned into a rainbow haze that tickles the senses. The Dream Weavers are waiting for them, their forms bright and vibrant, their wings shimmering with every color of the spectrum."Thank you," the Weaver leader says, its voice a chorus of pure joy. "You've saved not just our home, but the dreams of every being across the multiverse. The Fantasia Fugue will play on, and fear will never again drown out hope."Echo and Li Wei smile, but their attention is drawn to a faint, pulsing light in the distance—a silvery glow that shimmers at the edge of the dreamscape, a sign that another dimension is in need.Li Wei stands, his charge glowing with a familiar purple light, now infused with a hint of the dreamstuff's gold. "Ready to wake up to the next adventure?" he asks.Echo nods, slinging her drum over her shoulder, its surface now etched with faint patterns that resemble constellations. "Always," she says. "As long as there are dreams to protect, we'll be there to keep them alive."They step through the portal Nova opens, leaving the Dream Fugue behind, but carrying its lesson with them: that imagination and hope are just as powerful as fear, and that music is the bridge between them. The next dimension awaits, and with it, a new dream to defend.