Elias did not lower the emitter.
He stood in the doorway with the containment field humming behind him and a stranger on his threshold whose eyes were the color of old snow and who apparently had no Aether signature, and he ran through his options with the particular clarity that arrived when the situation was strange enough to bypass the usual noise.
Option one: use the emitter. The pulse would disrupt biological Aether function for roughly forty seconds. If Cael had no Aether, the effect would be negligible, which would be informative but would also leave him without a functional deterrent and potentially with an aggravated unknown quantity on his doorstep.
Option two: shut the door. Simple, clean, and completely useless if Cael already knew what was in his lab and had been watching the orb's signal for six days.
Option three: let them talk.
He stepped back from the doorway.
"Inside," he said. "Hands where I can see them."
Cael stepped across the threshold without hesitation, moving into the lab with the unhurried ease of someone entering a space they had already mapped in their head. Their hands were visible — empty, relaxed, no equipment or weapons he could identify. They surveyed the room with those pale eyes, passing over the equipment racks, the notebook stacks, the secondary monitoring setup, and settling finally on the containment field and the orb within it.
Something shifted in their expression. Not dramatically. Just the small compression of someone confirming a thing they had expected to see but hadn't been entirely certain of until this moment.
Elias shut the door and kept the emitter in his hand.
"Six days," he said. "Start there."
Cael turned from the containment field and looked at him directly. Up close, the eyes were even more unusual — not just pale but somehow texturally flat, as if the depth that normal eyes carried was absent. Like looking at a photograph of eyes rather than the eyes themselves.
"The signal the orb emits has a specific frequency profile," Cael said. "I've been tracking it for six days because I've seen it before. Twice. Both times, the person in possession of the orb was dead within two weeks."
Elias absorbed that without expression.
"How did they die?" he asked.
"The first — Aether collapse. Her internal reserves destabilized progressively over eight days, then failed completely." Cael paused. "The second is less clear. He was found in his lab. No visible cause. His monitoring equipment had been running and the logs showed the orb's consumption rate increasing sharply in the forty-eight hours before he died." Another pause. "The containment field was intact. Whatever it consumed through the field, the field didn't stop it."
Elias looked at the containment field.
At the orb inside it.
At the violet threads, still oriented toward Cael.
"You said the field wouldn't stop it," he said carefully. "What is it consuming?"
Cael was quiet for a moment. The kind of quiet that felt less like hesitation and more like selecting the right words from a set of imprecise options.
"Do you know what Aether actually is?" they asked.
Elias frowned. "Energy. Magical in nature, present in living systems and certain materials, the foundational resource of—"
"That's what it does," Cael said. "Not what it is."
Elias stopped.
Cael moved to the secondary workbench — not touching anything, just standing near it, their eyes on the orb. "Aether is a derivative. A processed form of something older. The thing it's derived from doesn't have a common name anymore because the people who named it originally are gone. The closest term in current use is Soul Substrate — the base material that underlies both Aether and life itself. It's what Aether is refined from, the way a potion is refined from raw compounds."
Elias was very still.
"The orb," Cael continued, "doesn't consume Aether. It consumes Soul Substrate directly. Which is why your containment field doesn't stop it — the field blocks Aether frequencies, not the base layer beneath them." They finally turned from the orb and looked at him. "And why the people who held it without knowing what it was died. They weren't running out of Aether. They were running out of something more fundamental."
The lab was very quiet.
Elias set the emitter down on the workbench beside him. Not because the threat had passed — he wasn't sure it had — but because he needed both hands free to think, and thinking for him had always been a physical process.
He crossed to the primary notebook and picked it up. Found the page. Read his own words back to himself.
It knows I'm here.
Active thermal regulation, or passive energy output.
The orb is feeding.
"The consumption rate," he said. "You said it increased in the forty-eight hours before the second person died. What changed?"
Cael tilted their head slightly — the same gesture as before, the movement of someone recalibrating their assessment of a person upward. "He began direct experimentation. Physical contact without adequate protection. Extended proximity."
"Proximity increases the draw."
"Proximity, direct interaction, emotional response to a degree — anything that increases the activity of the Soul Substrate in the subject makes the draw stronger." Cael paused. "You've been running scans for three days. You haven't touched it directly."
"I've been careful."
"You've been lucky," Cael said, without particular judgment. "And careful. Both matter."
Elias looked at the containment field again. Three days of scans. Three days of sitting within arm's reach of something that was passively consuming the base material of his existence, at a low enough rate that he hadn't noticed — that no instrument calibrated for Aether would notice, because it was operating below that layer entirely.
He felt, very briefly, the specific cold clarity of understanding a danger after the fact.
Then he filed it away and focused.
"You've been tracking the signal for six days," he said. "You knew what it was before you came here. Which means you came here for a reason that isn't warning me."
Cael looked at him for a moment.
"The warning is part of it," they said.
"And the rest?"
Another pause. Longer this time.
"The orb's signal isn't random," Cael said. "The eleven-second pulse you identified — it's a locator, as I said. But it's not locating you. It's locating something else. Sending out a position marker and waiting for a response." They moved toward the containment field, stopping a meter away from it. "Three days ago, before you started your scans, the pulse interval was fourteen seconds. Two days ago it dropped to twelve. Today it's eleven."
Elias stared at them. "It's accelerating."
"Whatever it's broadcasting to is getting closer." Cael finally looked away from the orb and met his eyes directly. "I need to know what happens when it arrives. The previous two owners died before we reached this stage. You're the first person who has studied it carefully enough to still be functional this far in."
"So I'm useful to you."
"Yes."
He appreciated the honesty, at least.
"Who are you?" he said. "Not your name. Who are you. How do you know any of this, how do you have no Aether signature, and why are you tracking Voidspawn cores across Vael City instead of taking this to the Dawnbuilders or the Guild?"
Cael was quiet for a long moment. The pale eyes moved back to the orb, and something passed through their expression that Elias couldn't fully categorize — not quite grief, not quite recognition. Something older than either of those things.
"Because the Dawnbuilders already know," Cael said quietly. "They've known since the second person died. They classified it, sealed the research, and added it to the list of things they monitor quietly and don't put on official maps."
The same phrase Orin had used about the unstable gateway where the orb was found.
Elias noted that connection without commenting on it.
"And the Guild?" he said.
"The Guild Syndicate's interest in Void energy is not academic." Cael's voice remained level but something underneath it sharpened. "If they acquire the orb before we understand what it's signaling, the outcome is not one I'm willing to allow."
We, Elias noted.
"You still haven't answered the question," he said. "Who are you?"
Cael reached into the inner pocket of their coat and set something on the workbench between them.
It was small — a disc, roughly the size of a coin, made of a material that wasn't quite metal and wasn't quite stone. Its surface was engraved with a pattern that Elias's eyes wanted to slide away from, the way the mind resisted looking directly at something that operated outside its usual processing framework.
He knew what it was.
He had seen illustrations of them in three separate historical texts, all of which had described them as artifacts of an organization that had been dissolved, dismantled, or destroyed — depending on which account you read — approximately forty years ago.
A Warden seal.
"The Wardens were disbanded," Elias said.
"Officially," Cael agreed.
Elias looked at the seal. At Cael. At the orb, where the violet threads remained oriented with quiet certainty toward this person who carried no Aether and a seal from an organization that wasn't supposed to exist anymore.
"The pulse interval," he said. "Eleven seconds now. How much time do we have before whatever it's signaling reaches us?"
Cael picked up the seal and returned it to their pocket.
"At the current rate of acceleration," they said, "four days. Maybe five."
Elias pulled up a stool.
"Then sit down," he said, "and tell me everything you know. We can establish what you want from me after I've decided whether the information is worth trusting you."
For the first time since entering the lab, something shifted in Cael's expression that might, generously, have been called the beginning of respect.
They pulled up the second stool.
And they began.
Outside, in the narrow street between the defunct repair shop and the water reclamation unit, the night was quiet. The energy shields humming above Vael City cast their faint blue light across the rooftops. Guild Syndicate patrol drones moved in their standard grid patterns three blocks east.
In the lab, two people sat across from each other in the light of monitoring equipment, and the Void Orb pulsed its eleven-second signal into the dark.
Ten point eight seconds now.
Accelerating.