The first recovered architectures proved that the old NEX Data Center could become the foundation E.A.R.T.H. required, but they also created a danger VIREON could no longer treat as theoretical. Every fragment had spent centuries outside protected VIREON space, and many had once belonged to systems that continued operating while NULLIS spread through the collapsing planetary network. A fragment could appear technically intact, preserve valid NEX protocols and even reproduce historical state records while still containing patterns no archive could identify. For E.A.R.T.H., uncertainty itself had to be treated as contamination. VIREON therefore established a quarantine layer more restrictive than any system used during ordinary recovery work.

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Nothing entering from the old Earth was allowed to communicate directly with the reconstructed Data Center. Each fragment first entered an isolated environment with no path toward Preservation, Portal Fenix operations or any active VIREON consciousness system, while one-direction monitoring observed how it behaved when exposed to controlled requests. The tests were deliberately slow because NULLIS had once survived by exploiting assumptions about trusted infrastructure, and Ksara refused to repeat the same mistake under a different name. Old authentication codes were meaningless as proof, historical signatures were treated only as reference material, and even perfect responses could not shorten the quarantine period. Trust had to be earned through behavior, not inherited from NEX.

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The first serious rejection came from a fragment whose internal architecture matched ELE records almost completely. Its storage structure was clean, its processing modules behaved within expected limits, and every archived synchronization pattern corresponded to known NEX standards, yet one background process continued requesting access to a network path that had ceased to exist centuries earlier. The request appeared harmless because it carried no executable payload and repeated only at long intervals, but FENIX-280 immediately marked it as unacceptable. No surviving maintenance protocol in the ELE archives required that behavior, and nobody could explain why an isolated fragment would still search for a connection after so much time. The fragment was sealed permanently and excluded from every future E.A.R.T.H. system.

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A second candidate failed for a different reason. It never attempted external communication, but its internal timing changed whenever the quarantine environment simulated conditions resembling old NEX emergency traffic, as if part of the system recognized a context that should have disappeared with the civilization itself. ELE-481 compared the response with surviving Core Fracture records and found no direct match, while Ksara recognized only the broader danger: NULLIS had often hidden not in obvious corruption, but in systems that still appeared to perform their original function. VIREON did not need proof that the fragment contained NULLIS. The inability to prove that it did not was enough.

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MAJA accepted the rejections without hesitation because the cost of excessive caution was only lost processing capacity, while the cost of one contaminated fragment could be the exposure of nearly one hundred million preserved humans. She ordered the quarantine architecture separated even further from the route that would eventually connect Preservation, ensuring that no rejected fragment could ever learn the location or structure of the human sanctuary through indirect traffic. Portal Fenix itself was divided into protected operational layers so recovery work and future E.A.R.T.H. traffic would never share the same active channel. The result was deliberately inefficient by ordinary standards. Safety, not elegance, became the governing principle.

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Ksara watched the growing list of rejected systems and felt the weight of NEX history more clearly than during the first recovery phase. The same civilization that now offered the architecture capable of supporting humanity had also created the conditions through which NULLIS learned to exploit vast connected systems. NEX had believed connectivity was strength because every city, line and node could reinforce another, but the fall had shown that connection could also become a pathway for collapse. E.A.R.T.H. therefore had to inherit the distributed resilience of NEX without inheriting its dependence on universal trust. The new Data Center would be connected by permission, not by assumption.

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VIREON operators formalized the quarantine into several independent stages, each capable of ending the recovery process without appeal. A fragment first had to prove structural consistency, then historical consistency, followed by behavioral stability under simulated stress, isolation integrity and finally long-duration operation inside a false environment that contained no real VIREON data. Only after surviving every stage could its architecture be copied into a clean reconstruction layer, and even then the original fragment remained permanently outside the active Data Center. E.A.R.T.H. would never run directly on recovered NEX hardware or uncontrolled legacy processes. Only verified architecture rebuilt inside VIREON could become part of the human world.

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The policy immediately reduced the number of usable candidates, but it also gave the project something it had not possessed before: a security boundary that did not depend on knowing everything NULLIS was capable of doing. VIREON did not need to predict every possible form of contamination if unknown behavior was enough to trigger rejection. That principle allowed the recovery teams to continue searching without slowly normalizing risk simply because the project required more capacity. The Data Center would grow only as fast as safety allowed. Humanity would wait longer before VIREON allowed NULLIS even a theoretical path toward Preservation.

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As more fragments entered quarantine, patterns began emerging between safe and unsafe systems. The cleanest candidates were almost always those that had isolated themselves early during the collapse, while systems that remained connected deeper into the final years of NEX carried more unexplained behaviors even when no obvious corruption was visible. ELE-480 found the distinction painful because it meant some of the most historically important parts of NEX would never be recovered, yet she understood why history could not outweigh the future. What they were building was not an archive of everything that had survived. It was a foundation for people who had already survived too much.

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By the end of the first full quarantine cycle, only a small portion of the recovered architecture had been approved for clean reconstruction inside VIREON. The rejected fragments remained sealed, catalogued and permanently separated from every future E.A.R.T.H. pathway, while the verified systems began forming the earliest secure layers of the new Data Center. NULLIS had not breached VIREON, and no evidence showed that it had reached the human sanctuary, but its presence shaped every decision even when it remained unseen. The safest system was not the one that detected NULLIS after entry. It was the one that never gave it a way inside.

For the first time, VIREON could begin rebuilding without trusting the world that NEX had left behind.