Eren didn't stop moving until the ruined courtyard was nothing more than a smear of broken stone behind him.
The forest swallowed him whole.
The air here felt different—not heavier, not thinner, but arranged. Mana flowed in deliberate currents, weaving between roots and trunks instead of stagnating in pools. Every step pressed against something unseen, like walking through water that refused to ripple.
His body noticed before his mind did.
Mana circulated slower through his core, denser with every rotation. The familiar burn that followed consumption was gone. In its place was a deep, steady pressure—controlled, restrained, waiting.
The hunger was still there.
But it wasn't screaming.
That unsettled him more than the Devourers ever had.
Eren flexed his fingers, watching faint traces of mana bleed into the air before snapping back into him, obedient. Too obedient. The power he'd taken wasn't resisting. It wasn't fighting to assert itself.
It was settling in.
The system should've commented by now. It always did—warnings, confirmations, efficiency updates. Instead, silence stretched with every step.
He pushed forward, senses open.
The forest responded.
The trees grew straighter the deeper he went, bark marked with shallow grooves that weren't natural. Not words. Not symbols. Just lines, carved with purpose. Some crossed. Others spiraled inward before abruptly stopping, as if whoever made them had changed their mind halfway through.
Eren slowed.
"This place is designed," he muttered.
The mana here wasn't wild. It was guided.
A faint vibration brushed against his perception.
He froze.
The world didn't change—no sound, no movement—but something lagged. The sway of leaves felt delayed, like reality was half a heartbeat behind itself. His vision sharpened unnaturally, edges too clean, shadows too precise.
Then it snapped back into place.
Eren sucked in a breath.
A second passed.
Then the system reacted.
[Anomaly registered.]
[Source: Unknown.]
His jaw tightened. "You're late."
No response followed.
That was new.
He stepped forward again, more carefully now. The vibration returned, stronger this time, resonating through his bones rather than his ears. It wasn't hostile. It wasn't welcoming either.
It was curious.
The trees ahead thinned into a clearing, the ground unnervingly smooth. No corpses. No signs of battle. Just bare earth etched with faint, overlapping impressions—like something had existed there long enough to press itself into the world without ever touching it.
Eren knelt.
The mana here was wrong.
Not corrupted. Not violent.
Remembered.
He closed his eyes and extended his perception.
The moment he did, pressure slammed into him.
Not force—intent.
Images flashed through his mind, fragmented and incomplete. Paths walked and abandoned. Victories without triumph. Hunger without satisfaction. The sensation wasn't devoured—it was absorbed, layered over itself again and again until identity blurred into accumulation.
Eren staggered back, breath sharp.
"This isn't a monster," he said slowly. "It's a residue."
Something that had been here… and moved on.
The vibration shifted, tightening.
The system stirred.
[Interaction not advised.]
[Reason: Inconclusive.]
Eren laughed under his breath. "That's it? No threat level? No explanation?"
Silence.
For the first time since awakening it, the system felt like it was avoiding the subject.
The clearing darkened—not physically, but perceptually. Mana folded inward, compressing until the air itself seemed to lean toward a single point.
Then the Echo emerged.
It didn't have a body.
It didn't need one.
Eren perceived it the way one feels pressure behind the eyes—a presence defined by absence. The space it occupied was emptier than it should have been, like reality had been skimmed too many times.
Hunger brushed against him.
Not Gluttony's sharp, consuming pull.
This was measured. Selective.
Evaluative.
Eren straightened. "You're the one shaping this place."
The Echo didn't answer in words.
Instead, it pressed intent against his core.
A challenge.
Eren responded instinctively, mana flaring as Gluttony surged to the surface. Hunger roared awake, eager to consume, to dominate, to erase whatever stood before it.
The Echo resisted.
Not by force—but by refusal.
The pressure between them intensified, overlapping hungers colliding without contact. Eren felt his power strain, not against an opponent, but against a concept that refused to be eaten.
Images flooded him again—this time sharper.
Beings consumed and forgotten. Paths taken to their ends. Strength gained only to reach stagnation. The Echo didn't devour power.
It devoured outcomes.
Eren's breath hitched.
"You're not hunting monsters," he realized. "You're harvesting conclusions."
The pressure shifted.
Approval? Interest?
The system flickered.
[Warning: Data conflict detected.]
Eren ignored it and stepped forward, pushing his hunger not outward, but inward—compressing it, shaping it, forcing Gluttony to listen rather than consume.
The Echo reacted instantly.
For the first time, resistance cracked.
Intent slammed into Eren's mind, clearer now, focused on a single truth:
Unfinished.
The word wasn't spoken, but it echoed louder than any system alert.
Eren gritted his teeth. "Yeah," he said quietly. "I know."
The pressure eased.
The Echo withdrew, unraveling like mist pulled apart by opposing currents. Before it vanished entirely, something lingered—an impression burned into the flow of mana itself.
A symbol.
Not carved. Not visible.
But Eren understood it.
A path branching into many, each ending abruptly except one that looped back into itself.
The hunger inside him stirred, confused.
Then the Echo was gone.
The clearing felt emptier than before.
The system finally spoke.
[Path deviation detected.]
Eren exhaled slowly, eyes fixed on the space where the Echo had been.
"So," he murmured, "you felt that too."
No response.
He turned away from the clearing, pulse steady despite the weight settling into his chest. Gluttony was quieter now—not weaker, but… aware.
Something else had acknowledged him.
Not as prey.
Not as a threat.
But as a variable.
As he stepped back into the forest, Eren understood one thing with unsettling clarity:
He wasn't just consuming the world anymore.
Something was watching to see what he'd become after.