Loreth stepped forward, adding her own expertise to the containment spell. Her magic manifested as threads of amber light that wove through Mira’s silver lattice, reinforcing weak points and adding analytical components.

  “Secondary layer integrated,” she confirmed.

  Harrick completed the third layer, his magic forming a dense mesh of blue-white energy that settled over the previous layers like a net. The combined spell now formed a dome of interlaced magic over the fissure, pulsing with the combined power of the three mages.

  “Containment structure complete,” Harrick said. “Ready for activation.”

  Owen positioned himself at the head of the formation, the final control rune in his palm. “Initiating containment in three, two, one⁠—”

  He pressed the rune into the spell structure. The layered wards flared brilliantly as the containment field activated, sealing the fissure within a prison of magic.

  The effect was immediate. The blue-green light flared violently and pushed against the containment field. What had seemed passive before now lashed against their wards with deliberate force, just like it had when he’d probed the last anomaly.

  “Hold steady,” Owen commanded, pouring his own magic into the containment spell. The team linked their power, maintaining the integrity of the field as the anomaly tested its boundaries.

  A sudden burst of energy from the fissure sent feedback surging through their network. Harrick’s monitoring crystals exploded in a shower of fragments.

  The anomaly shifted tactics, finding weak points in Mira’s ward structure, sending tendrils of blue-green energy to interfere with her magic.

  “It’s targeting the connection points,” Mira called, her voice strained.

  “The energy pattern is learning,” Loreth warned. “It’s responding to our containment methods faster than we can adjust.”

  Owen modified the containment field, strengthening the areas under attack, but the fissure’s energy simply shifted to new targets. For every adjustment they made, the anomaly adapted twice as fast.

  “The shield is giving out,” Mira cried. “I can’t maintain it much longer.”

  Harrick suddenly dropped to one knee, his face pale. “Something’s wrong—” he gasped, before collapsing entirely. His connection to the containment spell severed abruptly, leaving a dangerous gap in their defences.

  “We can’t hold it,” Owen shouted. “Everyone let go—now!”

  The team released the containment spell, the magical structure dissolving as they retreated toward the chamber entrance. The blue-green light surged from the fissure, reaching after them like grasping fingers before withdrawing back into the chasm.

  A deafening crack echoed through the chamber as the nearest pillar split, a jagged line racing from floor to ceiling. The fracture appeared precisely where Mira’s ward had connected to the stone.

  “The pillars!” Owen shouted, watching as another column began to splinter. It wasn’t attacking them, but dismantling their magic.

  The blue-green light pulsed with renewed intensity, each surge coinciding perfectly with structural failures throughout the chamber. Stone groaned and shifted overhead as ancient supports began to give way.

  “We need to move,” Loreth called, frantically gathering what remained of their equipment. “Now!”

  Mira had already reached Harrick, hauling him to his feet. “He’s completely drained,” she gasped, staggering slightly under his weight.

  “I’m okay,” Harrick rasped, swatting at her. “I can walk.”

  “You can’t,” Mira snapped, dragging him toward the tunnel. “Don’t be such a big baby.”

  Owen grabbed the last of their monitoring devices as the fissure surged with blinding intensity. The light filled the chamber, casting everything in an unnatural blue-green glow. When his vision cleared, Owen saw the stone floor fracturing beneath their boots, breaking in targeted arcs.

  “It’s herding us,” Loreth realised, as another crack appeared, cutting off their path to the left.

  The team retreated toward the tunnel, the only route left available as the chamber sealed off all other escape routes. Behind them, chunks of ceiling began to fall—not randomly, but in timed bursts that never struck them directly.

  It wanted them gone, Owen realised, ducking as debris crashed down mere inches from where he’d stood a moment before. But it wasn’t trying to kill them…

  They scrambled back through the tunnel, the blue-green light pursuing them like a tide. The walls shuddered with each pulse, ancient mortar crumbling as the structure began to fail.

  “Almost there,” Mira gasped, still dragging Harrick as they approached the stairs.

  The moment they crossed the threshold onto the staircase, the light vanished. The rumbling stopped. The collapse halted as suddenly as it had begun.

  The silence that followed was absolute.

  The narrow tunnel leading back to the surface felt suffocating after the vast chamber below. Owen leaned against the frost-covered wall, his breath coming in ragged gasps that clouded before him. The wound on his cheek throbbed with each heartbeat, a persistent reminder of what lay below.

  Harrick sat slumped against the opposite wall, his face ashen. “Something was in there,” he rasped. “Not just energy. It got inside my magic when the containment failed.” He pressed his palms against his temples. “Like it was looking through me, rifling through my thoughts.”

  Loreth crouched beside him. She pulled several cracked monitoring crystals from her pack, examining the fractured surfaces.

  “Some data survived,” she said, holding one to the light of Mira’s conjured orb. “The patterns weren’t random.” She traced her finger along a series of etched lines. “The rhythm changed consistently, the structure evolved with each interaction. It wasn’t reacting to us…” She looked up at Owen. “It was studying us.”

  “I’ve seen this before,” Owen said. The team turned to him. “Not exactly this, but something similar. I was in the Fold when the Echo shattered. I saw its intelligence…and I saw what happened when its fragments entered the ley lines. What if this…?”

  “An Echo fragment?” Mira looked sceptical. “Trapped under Nightreach?”

  “Think about it,” Owen continued. “The intelligence behind those responses, the way it adapted to our magic. It wasn’t trying to destroy us. It was testing boundaries, like something looking for a way out. It has a heartbeat.”

  “But someone created those fissures,” Mira pointed out. “They’re positioned at key convergence points in the ley line network. Someone knew exactly where to cut.”

  Loreth examined another crystal, her brow furrowed. “These readings don’t match any known magical signature in our records. Not even close.” She looked up, her expression grave. “Echo fragment aside, are we certain what we encountered was actually a ley line?”

  “If it is an Echo fragment, we have to get it out before whoever made those fissures does,” Owen said. “And if it’s not…? Then we’ve got bigger problems.”

  “We should report back,” Loreth said.

  Owen nodded. “Harrick, you okay to keep moving?”

  “I’m good,” he said, allowing Mira to help him stand.

  The narrow stairway seemed endless, each step taking them further from the anomaly but not from its danger. Owen’s mind churned, cataloguing everything they’d witnessed against his years of experience with magical infrastructure. Nothing in his training had prepared him for this.

  “Let me see those readings again,” he said as they reached a small landing.

  Loreth handed him the surviving crystals. Their fractured surfaces still held data, etched into the matrix by the anomaly’s energy. Owen traced the patterns with his fingertip, feeling the residual magic pulsing faintly against his skin.

  “Four-point-three seconds between pulses,” he murmured. “Consistent, unchanging except when challenged.”

  Something about the rhythm nagged at him. He’d seen this pattern before, recently. Not in the western quarter anomaly—that had been similar, but not identical. This was…

  The realisation hit him.

  “Ember,” he whispered.

  “What about her?” Mira asked, adjusting Harrick’s weight against her shoulder.

  Owen stared at the crystal, watching the recorded pulses of blue-green light. The rhythm was the same as the one he saw the silver markings on Ember’s arm emitting. But it was impossible. Thornhallow’s magic was completely different—bound to the Concordat, to centuries of witchcraft.

  “We should report this to the Concordat as well,” he said quickly. If Thornhallow’s influence on Ember shared a rhythm with whatever lay beneath Nightreach…then it wasn’t a theory he wanted to spread around. Not if he wanted to keep his head on his shoulders.

  Mira shrugged as the team continued their ascent, finally emerging onto the street. The night air was warm and clear against their faces after the stifling chill of the tunnel. In the distance, the ward-lights flickered in unison, dimming momentarily before brightening again. The pattern repeated—a four-second pulse that sent shadows dancing across the cobblestones.

  The cut on Owen’s cheek throbbed suddenly, a sharp pain that matched the rhythm of the lights. He pressed his palm against the wound, feeling warmth beneath his fingers. When he pulled his hand away, a faint blue-green residue glistened on his skin before fading into nothing.

  It’s connected, he thought. Thornhallow and whatever’s down there… Are they speaking to each other?

  “Are you okay to report back?” Owen asked. “I want to head to Thornhallow. The Concordat should know about this as soon as possible.”

  “We’ve got this,” Loreth assured him, already helping Mira support Harrick down the street.

  Owen watched the team disappear into the night before turning toward Thornhallow. The wound on his cheek pulsed in that same rhythm—four-point-three seconds—as he started the long walk across Nightreach.

  He had no idea if Ember would even see him, let alone believe what he’d discovered, but the connection was unmistakable. With each step, the certainty grew that whatever lay beneath the city was somehow linked to her.

  He quickened his pace, the broken crystals clinking softly in his satchel as the moon cast his shadow before him.

  Chapter 29

  The shadow construct’s form rippled, its edges bleeding into nothingness before solidifying again. Vesper’s magic thrummed through her veins as she maintained the barrier, but each impact sent tremors through her body.

  The ley lines answered her call this time, but the fragment’s influence had pushed them too far away for her to tap into. Instead, she did what Aldrick had accused her of not doing…using her own power.

  “They’re stronger than before.” Vesper’s arms shook with the effort of holding back the writhing mass of darkness. The old mage was right, of course. She’d been relying on other’s magic, including the ley lines, and her attunement to her own magic was sloppy at best.

  Rafe’s magic blazed beside her, blue light cutting through another construct as it emerged from the lake. The creature split apart, but its separated pieces twisted back together, reforming into something larger and more grotesque.

  “The Echo fragment must be powering them.” Rafe spun away from a tendril of shadow that whipped past his head. “They’re drawing energy from it.”

  A third construct rose from the water, its form stretching impossibly tall before crashing down toward them like a wave. Vesper’s barrier flickered as her concentration wavered. The darkness pressed against her magic, seeping through tiny cracks in her defence. Cold spread through her chest where the shadow touched her, a familiar sensation that echoed the void she’d felt when shattering the Echo.

  The barrier shattered. Vesper stumbled backwards as the construct lunged forward, its form twisting between solid and void with each movement. Her magic responded instinctively, pearls of light bursting from her palms in a desperate counter-attack. The construct recoiled, its edges fraying like torn fabric, but it didn’t dissipate. Instead, it reformed in an instant, pressing forward with renewed intensity.

  “Vesper!” Rafe’s voice cut through her panic. He stood at her back, his own magic flaring against the advancing shadows.

  The first construct struck again, its body distorting into impossible angles as it slammed against Vesper’s hastily raised defence. The impact reverberated through her bones, nearly bringing her to her knees.

  Vesper’s muscles burned with the effort of maintaining her defences. Each pulse of magic she sent out felt weaker than the last, yet the constructs kept coming, not allowing her to go on the attack. Her heart pounded as she watched Rafe, his magic slicing through the darkness with the skill she wished she had.

  The construct before her twisted, its form melting and reforming into something that made her stomach twist. For a split second, she caught a glimpse of what might have been a face—hollow eyes and a gaping maw—before it dissolved back into writhing shadows.

  “They won’t stay down,” she called to Rafe, sending another burst of power toward the nearest creature. The light scattered across its surface, and though it recoiled, it didn’t dissipate. Instead, it reformed into something larger, more menacing.

  Rafe’s magic crackled through the air beside her, energy carving through another construct. The creature split apart, its edges fraying into wisps of shadow, but the separated pieces drew back together. Within moments, it loomed before them again, its form shifting between shapes that tugged at the edges of Vesper’s memory.

  She recognised something in their movements, something that reminded her of the Echo’s touch against her mind. But before she could grasp the connection, the construct lunged forward. Vesper threw up another barrier, her magic flaring bright against the darkness. The impact sent tremors through her arms, and she gritted her teeth against the strain.

  “It’s like they’re learning,” Rafe shouted, dodging a tendril of shadow that whipped past his shoulder. “Each time we strike them down⁠—”

  “They come back stronger,” Vesper finished, watching as the creatures reformed yet again, their shapes becoming more defined with each resurrection.

  The constructs pressed closer, their darkness seeping through tiny gaps in her defences. Each pulse of magic felt weaker than the last, her reserves draining with every strike she deflected.

  Behind her, Rafe’s breath came in sharp gasps as he fought to keep the shadows at bay. His magic blazed against the darkness, but even his precise attacks barely slowed the relentless assault.

  A tendril of shadow slipped past her guard, cold darkness brushing against her skin. Vesper stumbled back, shoulder bumping against Rafe’s. The constructs advanced, forcing them to give more ground.

  Magic surged through her veins as she drew deeper into her reserves. The power built beneath her skin, ready to burst forth…but something shifted. The ley lines beneath her feet pulsed, reaching through the shadow keeping them away, and resonated with her magic in a way she’d never felt before. Her power flared, bright and wild, and the constructs froze.

  The Echo calls to its own.

  The moment stretched, barely longer than a heartbeat. The shadows wavered, their edges dissolving into wisps of darkness.

  The Echo calls to its own.

  Vesper stepped forward, letting her magic flow freely now. It rippled outward in waves of pearlescent light, and the constructs recoiled.

  The Echo calls to its own…

  Their forms broke apart, fragments of shadow drifting like smoke on the wind. As one, they retreated, sliding back across the surface of the lake. The water didn’t ripple as they moved, leaving the mirror-like surface unbroken even as the shadows sank beneath.

  Within moments, the constructs vanished completely, leaving only the unnatural stillness of the lake and the crystal formations as evidence they’d ever existed.

  Vesper’s legs trembled. Her chest heaved with each breath, magic still crackling beneath her skin. The silence pressed against her ears after the chaos, broken only by the soft chime of wind through crystal.

  She turned to Rafe. His magic signature pulsed erratically, betraying the tension in his rigid posture. Something wasn’t right. The constructs hadn’t been destroyed or banished. They’d withdrawn.

  “They’re still there,” she said. “They’ve been watching us since we stepped onto the shore.”

  Rafe nodded, gaze fixed on the water. His fingers flexed at his sides, blue sparks of magic dancing between them. “Something happened when I struck the last one. Something—” He broke off, running a hand through his hair. “I saw something.”

  “What do you mean?”

  “A memory.” His voice dropped. “But not mine. At least, I don’t think so. When my magic connected with the construct, images flooded through me. A room full of mirrors. People I didn’t recognise. It felt real, solid, like⁠—”

  “Like an echo?” Vesper’s heart skipped.

  “Yes.” Rafe finally looked at her, his expression troubled. “The Echo stored memories, right? I don’t think they’re just shadows. What if they’re carrying fragments of those memories inside them?”

  Vesper glanced at the lake. She remembered the void-like touch of the Echo against her mind, the way it had reached into her thoughts. These constructs had felt similar, but different. More focused, perhaps. More intentional.

  “The grimoire said the Echo calls to its own,” she said. “What if that’s what these things are? Parts of the Echo trying to reconnect? They were loose in the city because the magic binding them was breaking down. Maybe this is what happens when the Echo is free…and no one is there to wield it.”

  “Or maybe splitting it is causing stored memories to leak out.”

  Vesper sighed. It just kept getting worse. “I think you’re right.”

  Rafe moved beside her, his hand brushing against hers. “They recognised you.”

  Vesper’s skin prickled at Rafe’s words. The constructs had recognised her. Of course they had, she’d shattered their source, but there wasn’t time to process that disturbing revelation. The fragment’s presence pulled at her senses, its presence clear now that the shadows had retreated.