Rex arrived the way he always arrived.
Without warning.
One moment the sub-level stairs were empty. The next — a crack split the air at their base, not the cold blue-white of a Rift, not the amber warmth of K'rath's temporal sand, but something else entirely. A clean precise split in the fabric of the immediate moment, edges sharp and controlled, lasting exactly long enough for a person to step through and not one fraction of a second longer.
Rex stepped through it.
The crack sealed behind him before his second foot touched the floor.
He landed with the specific quality that would become his signature in the team's collective memory — not a dramatic arrival, not a performance, just the absolute economy of someone who had been jumping between realities for so long that landing had become the most natural thing his body knew how to do. Weight distributed perfectly. Balance immediate. Eyes already reading the room before the jump was even fully complete.
He was perhaps twenty five. Dark skinned, broad shouldered, built with the specific density of someone whose body had been shaped by war rather than training. His face carried its history openly — a scar running from his left temple to his jaw, old and clean, the kind of scar that spoke of something survived rather than something endured. Another across his right forearm, partially visible below his rolled sleeve. His eyes were the specific brown of someone who had seen too many timelines to be surprised by any single one of them.
He wore no uniform. No insignia. Nothing that announced affiliation or allegiance.
Just a worn jacket the color of dark earth, cargo pants, boots that had walked on more worlds than New Lagos knew existed, and at his right hip — a device Alex didn't recognize immediately. Compact. Dense. Pulsing with a faint quantum signature that the Heartstone registered as neither temporal nor Void-adjacent but something parallel to both. A Nexaran instrument. Built for jumping.
Rex looked at the room.
The room looked at Rex.
K'rath's amber eyes moved to him with the slow deliberate attention of stone encountering something it was assessing structurally. Lyra's wind-song shifted fractionally — not alarm, adjustment, the way a musician adjusts when a new instrument enters the space. Jace had the Chrono-Blade across his knees and was doing the thing he did — reading the new person completely before deciding anything about them.
Mira looked up from her workbench, assessed Rex in approximately two seconds, and looked back at her screens.
"You're eleven minutes late," she said.
Rex looked at her.
"I jumped through four adjacent realities to avoid a quantum storm over the Atlantic," he said. His voice was measured. Unhurried. The specific cadence of someone who chose each word the way he chose each jump — precisely, without waste. "Would you prefer I arrived on time and brought the storm with me."
Mira considered this for exactly one second.
"No," she said. And looked back at her screens. Which was Mira's version of: fair point, you'll do.
Rex looked at Alex.
Alex looked at Rex.
The room held its breath for the specific moment of two people taking each other's measure — not hostile, not performative, just honest. The kind of assessment that happened between people who had both been doing dangerous things long enough to know that reading someone accurately at the first meeting could be the difference between a successful operation and a catastrophic one.
Rex spoke first.
"So you're the time-wider Astra's been telling me about," he said.
"Alex," Alex said. He extended his hand. "You're Rex. The Pathfinder."
Rex looked at the extended hand for a moment. Then he took it. His grip was firm — a fraction past the conventional boundary of firm, the specific pressure of someone taking a physical measure alongside the visual one.
Alex held it without adjustment.
Rex's eyes moved — barely, just a fractional shift — and something in them recalibrated.
"Heard you're good at dodging trouble," Alex said.
"I jump," Rex said. "I land. And I win." He released Alex's hand. "What's the play, time-wider."
Alex looked at him steadily. "Stopping Kronos. Saving time." He paused. "You in."
Rex looked at him for a long moment.
Then he looked at the sub-level — at the mesh display, at Mira's equipment, at K'rath in the corner and Jace on his crate and Lyra by the wall and Soren in the center of the training space with his ancient eyes reading everything simultaneously. He looked at the canvas-covered wall upstairs that everyone in the room knew about and nobody mentioned unnecessarily. He looked at the fourteen green dots on the map and the three locations that had recently been dark and were now reinforced by stone.
He looked at all of it with the eyes of someone who had walked into many situations and developed an accurate instinct for which ones were worth staying in.
"I'm in," he said.
Mira briefed him in seven minutes.
She was efficient about it — no unnecessary context, no emotional framing, just the operational facts in the sequence Rex needed them. Delta Node location. Power signature. Compression field radius. Guardian keyed to Anchor frequency. Relay device specifications. Jump coordinates. Extraction parameters.
Rex listened the way he'd listened in Nexara's war councils — completely still, absorbing everything, asking no questions until she finished because interrupting a briefing was how you missed the detail that mattered.
When she finished he asked two questions.
"The compression field," he said. "It targets concentrated temporal signatures specifically."
"Yes," Mira said.
"My quantum signature is parallel to temporal energy," he said. "Not identical. Not Void-adjacent. Parallel." He looked at the satellite image. "The field might register me as background noise rather than a target."
"Might," Mira said. In the exact same tone K'rath had used when Alex asked about the bunker structures and the Void-Strike. Might. The most honest word in their operational vocabulary.
"Might is enough," Rex said. The specific certainty of someone who had jumped into situations with significantly less than might and come back standing.
Second question: "The guardian. Keyed to Anchor frequency. When the Engine was destroyed — did it dissipate or withdraw."
"Withdrew," Alex said. "K'rath said it had no purpose without the Engine to protect."
"But it's still there," Rex said.
"Possibly," Alex said.
Rex looked at the satellite image. At the three river channels surrounding the Node's location. At the dense mangrove between the channels and the power signature at their center.
"If it's still there and it registers my quantum signature as non-Anchor," he said slowly, "it won't engage me as a primary target." He paused. "But it might register me as an anomaly. Something that doesn't belong in that environment." He looked at Alex. "Something to investigate."
"How fast can you plant the relay and jump out," Jace said.
Rex looked at him.
"How fast," Jace said again. Direct. Testing. The same question he'd asked every team member at some point — not to intimidate but to calibrate. To understand exactly what he was working with.
Rex reached into his jacket and produced a small device — his Nexaran jump-instrument, the compact pulsing thing at his hip, now in his hand. He held it for a moment, fingers moving across its surface with the practiced fluency of someone who had been operating this specific tool in high-pressure situations for years.
Then he disappeared.
Not into a crack this time — just gone, between one moment and the next, the quantum signature of his presence simply absent from the sub-level's temporal field.
For three seconds the sub-level held only the team and the empty space where Rex had been.
Then he reappeared — same economy of landing, same immediate balance — on the opposite side of the workbench from where he'd been standing. He placed a small object on Mira's workbench surface. One of her styluses. He'd taken it from the cup beside her primary screen.
Mira looked at the stylus. Then at the cup. Then at Rex.
"Three seconds," Rex said to Jace. "That's how fast."
Jace looked at the stylus on the workbench.
The corner of his mouth moved. Not quite a smile. The specific expression of someone who has just received an answer that exceeded their calibration.
"Yeah," Jace said. "Okay."
They went over the relay placement twice.
Mira had built the device overnight — compact, shielded, designed to broadcast a passive scanning signal back to her workbench without generating any detectable active transmission. Passive relay only. No output signature. Nothing that would register on a temporal sensor as anything other than background geological noise.
She walked Rex through the placement protocol with the focused precision of someone who had spent considerable time building something and needed it handled correctly.
Rex listened with the same complete attention he'd given the briefing.
"Two hundred meters," Mira said. "No closer. The relay's passive signal can reach the Node's power signature from that distance — I don't need you inside the compression field."
"Understood," Rex said.
"Plant it in the ground," she said. "Not on a surface. The mangrove root system will help mask the signal as organic noise." She paused. "And Rex—"
He looked at her.
"If anything engages you," she said. "Don't fight it. Jump out immediately. The relay is replaceable." She held his gaze. "You're not."
Rex looked at her for a moment.
Something moved in his expression — not surprise exactly, but the specific quality of someone who had operated alone for long enough that being told they were not replaceable required a moment to process.
"Understood," he said again. Quieter this time.
Alex looked at Rex.
"Jace goes with you to the extraction point," he said. "Outside the wetland perimeter. If something goes wrong inside you jump to him and he gets you out."
Rex looked at Alex. "I work alone."
"Not on this team," Alex said.
Rex held his gaze.
Alex held it back.
The sub-level was quiet.
Rex looked at Jace — at the Chrono-Blade, at the direct honest eyes, at the specific quality of someone who had also been doing dangerous things long enough to be genuinely useful.
"Can you keep up," Rex said.
"Can you land without a crack in reality announcing you every time," Jace said.
Rex looked at him.
Jace looked back.
"Fair," Rex said.
They left at ten that night.
Rex and Jace. The Quantum-Jumper and the boy with the Chrono-Blade. An unlikely pairing that the team watched leave the sub-level with the collective held breath of people who had sent teammates into dangerous situations before and knew the specific quality of waiting for them to come back.
Alex stood at the mesh display after they left.
The fourteen green dots. Steady. The city's temporal field running clean. The Heartstone beating its warm certain pulse.
He thought about the Delta Node sitting in its wetland confluence. About what Rhea had said.
Be ready for it to change everything you think you understand about how this started.
He pressed his palm to his sternum.
K'rath appeared beside him — the amber-lit presence of the stone guardian, unhurried, settling into the space beside Alex with the geological patience of something that had waited out temporal storms on a desert world and found one night's waiting entirely manageable.
They stood in front of the mesh display together.
"You trust him," K'rath said. Not a question. An observation.
"Not yet," Alex said honestly. "But I think I will."
K'rath looked at the display.
"He reminds me of someone," he said.
Alex looked at him. "Who."
K'rath's amber eyes moved to Alex.
"You," he said simply. "Before the Heartstone chose you." He paused. "Someone who had been doing everything alone for so long that working with others required — relearning." He looked back at the display. "He will relearn. The same way you did."
Alex looked at the mesh.
At the fourteen green dots holding steady over his city.
At the two signals moving south toward the Niger Delta on Mira's tracking display — Rex's quantum signature and Jace's Chrono-Blade reading, moving together through the dark.
Together.
"Yeah," Alex said quietly.
He settled in to wait.