The portal dissolves into a shower of emerald sparkles, and Echo and Li Wei find themselves standing in a forest unlike any they've encountered. The air is thick with luminescent spores that drift like fireflies, each emitting a soft, musical hum. Trees tower overhead, their trunks covered in pulsing moss that glows with a greenish-blue light, while ferns unfurl to reveal fronds that chime like tiny bells when brushed by the wind. This is the "Spore Symphony" dimension, where life itself is a melody—the rustle of leaves forms a counterpoint to the buzz of insect wings, the growth of fungi creates a rhythmic pulse, and the very air vibrates with the "Vitality Chorus," a harmony that binds all living things in a cycle of growth and renewal.Nova's avatar materializes beside them, her form shimmering as spores pass through her. "Incredible," she says, her sensors analyzing the air. "The spores here contain bioacoustic energy—they convert biological processes into sound. Photosynthesis produces a sustained chord, decomposition creates a low, resonant bass, and reproduction adds a flurry of high-pitched notes. The Vitality Chorus is the sum of these sounds, and it's what maintains the dimension's ecosystem. But my scans show a contamination."Chen Jiuzhang's hologram appears, his expression grave as he watches a spore drift past, its glow dimmer than the others. "The 'Blight Spores' have invaded," he says. "They're a parasitic organism that feeds on the Vitality Chorus, replacing it with a 'Decay Dirge'—a dissonant melody that accelerates rot and stunts growth. Look." He points to a patch of ferns where the fronds have turned brown, their chimes reduced to a faint, rattling creak. "Already, the symbiosis is breaking down. If it spreads, the entire dimension will collapse into a cycle of endless decay."Echo reaches out to catch a glowing spore, and it pulses in her palm, emitting a warm, green note. "How do we stop it?" she asks."By finding the 'Mycelium Maestro'," Chen says. "It's a massive network of fungal threads that runs beneath the entire forest—the heart of the Vitality Chorus. If we can amplify its natural rhythm with our music, we can overpower the Decay Dirge and purify the Blight Spores."Li Wei's charge pulses with a purple glow, and he taps it against a nearby tree, causing the moss to light up brighter, its hum growing louder. "Then let's find this mycelium network," he says. "Before the decay spreads further."They set off through the forest, their footsteps muffled by a carpet of soft, spongy moss. The Spore Symphony is a place of constant motion—buds bursting open with a musical pop, vines unfurling to the sound of a rising scale, spores drifting on currents that carry melodies from one corner of the forest to another. But there's an undercurrent of unease: patches of gray, lifeless soil where nothing grows, mushrooms that emit a sickly, yellowish light and a discordant buzz, and a faint, acidic smell that burns the nostrils.As they walk, they hear a low, guttural melody—a fragment of the Decay Dirge. It's a slow, dragging tune that makes the spores around them dim, and Echo watches in alarm as a nearby flower wilts, its petals curling inward as the sound washes over it."It's like the Blight Composer all over again," Li Wei says, frowning. "But instead of withering plants, it's corrupting the very air."Echo nods, raising her peace drum. She starts to play a lively, upbeat rhythm, and the spores around them brighten, their hums growing stronger. A few of the wilting flowers perked up, their petals unfurling slightly. "Then we drown it out with life," she says.They continue through the forest, Echo's drumbeat pushing back the Decay Dirge, Li Wei scanning the ground for signs of the Mycelium Maestro. Along the way, they encounter a group of "Spore Warden"—small, humanoid creatures with bodies made of moss and heads topped with mushroom caps. Their forms are flickering, their movements sluggish, and their eyes (which glow like embers) are dim with concern."The Blight Spores are spreading from the 'Rotten Root Cavern'," one of the Wardens says, its voice a chorus of rustling leaves. "Deep beneath the forest, there's a chamber where the Mycelium Maestro is strongest. But the Blight has taken root there, feeding on its energy. Our healers have tried to purify it, but the Decay Dirge overwhelms their songs. Soon, even the Maestro will be corrupted."Echo places a hand on the Warden's shoulder, her drum emitting a steady, nurturing beat. "We'll help," she says. "The Vitality Chorus is too strong to be silenced forever."The Warden nods, its form stabilizing slightly as it absorbs the drum's vibrations. "The cavern is through that gully," it says, pointing to a narrow valley where the trees thin out. "But beware—the Blight has spawned 'Rot Thralls' to guard it. They're creatures made of decaying matter, animated by the Decay Dirge. Their touch spreads the Blight, and their howls amplify the dirge's power."Echo and Li Wei thank the Warden, then make their way to the gully. The ground here is patchy, with large areas of gray soil where the moss has died off. The air smells strongly of rot, and the spores are few and far between, their hums weak and disjointed.As they enter the gully, they hear the Decay Dirge grow louder—a relentless, grinding melody that makes their teeth ache. Suddenly, the ground shifts, and a group of Rot Thralls emerges from the soil. They are grotesque creatures, their bodies made of rotting wood and decaying leaves, their eyes glowing with a sickly yellow light. In one hand, they carry clubs made of bone; in the other, they clutch clusters of Blight Spores that pulse with the dirge's rhythm."Looks like we're gatecrashers," Li Wei says, raising his charge.Echo slams her drum, sending a wave of greenish energy (borrowed from the Vitality Chorus) toward the Thralls. The energy hits them, causing their bodies to smoke and their movements to slow. "Then let's make some noise," she says.Li Wei fires blasts of purple energy at the clusters of Blight Spores, shattering them and dispersing their corrupting influence. The Thralls howl, a sound that makes the Decay Dirge spike in intensity, but Echo's drumbeat counters it, weaving a melody that incorporates the sounds of growth and renewal—the unfurling of leaves, the blooming of flowers, the sprouting of seeds.They fight their way through the gully, the ground growing greener behind them as their music purifies the soil. Finally, they reach the entrance to the Rotten Root Cavern—a dark opening in the rock, from which emanates the strong stench of decay and the overwhelming sound of the Decay Dirge.Inside, the cavern is vast, its walls lined with bioluminescent fungi that cast an eerie green light. At the center, a massive network of mycelium threads spreads across the ceiling and floor, pulsing with a faint, golden light—the Mycelium Maestro. But 缠绕 around it are thick, black tendrils that drip with a viscous fluid, their surfaces covered in Blight Spores. As the tendrils pulse, the Maestro's light dims, and the Decay Dirge grows stronger.Hovering above the Maestro is the source of the Blight: a cloud of swirling, gray spores that 凝聚 into a vaguely humanoid shape. This is the "Blight Core," the heart of the infestation, which pulses in time with the Decay Dirge."You're too late," the Core hisses, its voice a chorus of rotting vegetation. "The Mycelium Maestro will soon be mine. The Decay Dirge will spread across the multiverse, reducing all life to its most basic form—rot. And from rot comes new order."Echo shakes her head, her drumbeat growing steadier as she draws on the Vitality Chorus. "Rot is part of life, not the end of it," she says. "And we're here to restore the balance."She starts to play, weaving together a melody that combines the sounds of every living dimension they've saved—the rustle of leaves from the Verdant Virtuoso, the buzz of insects from the Prism Symphony, the murmur of water from the Tidal Rhythm. The mycelium threads respond, their golden light growing brighter, pushing back the black tendrils.Li Wei fires blasts of energy at the Blight Core, which shatters into smaller clouds, but they quickly reform. "It's regenerating!" he shouts. "We need to hit it with something stronger!"Echo nods, her gaze falling on the center of the Mycelium Maestro, where a single, massive mushroom grows—a "Chorus Cap" with gills that pulse with the purest form of the Vitality Chorus. "The cap!" she shouts. "If we can amplify its sound, we can destroy the Core!"Li Wei nods, and together they sprint toward the Chorus Cap. The Rot Thralls surge forward, but Li Wei creates a barrier of purple energy that holds them back, while Echo's drumbeat purifies the ground beneath their feet, causing the Thralls to stumble as their decaying bodies come into contact with renewed soil.Echo reaches the Chorus Cap and places her drum against its stem, pouring all her strength into the melody. Li Wei joins her, pressing his charge against the cap, which glows brighter as it absorbs their combined energy. The Vitality Chorus swells, a tidal wave of sound that drowns out the Decay Dirge.The Blight Core shrieks as the chorus hits it, its form dissolving into a cloud of gray spores that are instantly purified by the golden light. The black tendrils wither and die, and the Mycelium Maestro pulses with renewed energy, spreading across the cavern and beyond, purifying the Blight Spores as it goes.The Rot Thralls collapse into piles of soil, which quickly sprouts new moss and ferns. The cavern shakes with the force of the Vitality Chorus, and the entire forest outside glows with a brilliant green light as the Blight is purged.Echo and Li Wei collapse onto the ground, exhausted but victorious. The Chorus Cap pulses with a warm, golden light, and the air is filled with the harmonious sounds of life—the rustle of leaves, the buzz of insects, the chirp of birds—as the Vitality Chorus is fully restored.They make their way back through the cavern and the gully, which is now teeming with life. The Spore Wardens are waiting for them, their forms bright and vibrant, their mushroom caps glowing with health."Thank you," the Warden leader says, its voice a rich, full harmony. "You've saved our home, and with it, the balance of life and decay. The Vitality Chorus will play on, stronger than ever."Echo and Li Wei smile, but their attention is drawn to a faint, pulsing light in the distance—a blueish glow that shimmers through the trees, a sign that another dimension is in need.Li Wei stands, his charge glowing with a familiar purple light. "Ready to answer the call?" he asks.Echo nods, slinging her drum over her shoulder, her fingers brushing the smooth surface that has carried them through so many battles. "Always," she says. "As long as there's life, there's music. And as long as there's music, we'll fight to protect it."They step through the portal Nova opens, leaving the Spore Symphony dimension behind, but carrying its lesson with them: that life is a symphony, and every note—even decay—has its place. The next dimension awaits, and with it, a new melody to safeguard.