Niflheim isolation-chamber trials

The Niflheim isolation-chamber trials were the colony’s first systematic test of local biological hazards, conducted by repeatedly exposing Mickey Barnes to microorganisms and observing what happened. Their stark result was that a body restored by backup technology did not spare its occupant from suffering: each death became part of the experiment, and survival required enduring the process again.

Purpose and Procedure

The trials followed a standard beachhead-colony priority: determining whether local microbiota threatened human health. In practice, the procedure made the colony’s Expendable the test subject. Isolatable organisms from the environment were introduced in turn, and Command waited for the effects to develop. The method depended on the fact that Mickey Barnes could be recreated after death; it did not make the deaths themselves brief or painless.

Mickey Barnes had accepted the Expendable position on Midgard because it was his only route off the planet, despite being warned that the work could involve lethal biological exposure. Recruiter Gwen Johansen described the possibility of prolonged, painful death, but Mickey assumed he could end a fatal experiment himself and wake in a newly printed body. Gwen explained that this was often not how the system worked: self-termination was uncommon, and Command might require an Expendable to remain alive until researchers had collected the necessary data. At Niflheim, that principle became the operating reality of the trials.

Less than a day after the expedition reached the surface, Nasha gave Mickey a final kiss before a Medical technician escorted him into the isolation chamber. The technician fitted him with a scanning helmet for continuous uploading, so the colony could preserve observations and potentially ask him about the experience afterward. The equipment made the procedure both a biological test and a record of its subject’s reactions: the body was exposed, while the helmet maintained a channel for information across the prospect of death and replacement.

The First Exposure and Nasha’s Vigil

Nasha tried to make the first ordeal bearable by staying outside the chamber window. For four hours she talked to Mickey Barnes about the planet as it appeared on the viewscreens, the Medical technician Arkady, and a drama she had been watching about a wealthy family on Midgard. She also spoke about what they would do together after the test, assuming he would return in a new body. Her vigil turned the chamber’s clinical routine into a scene of intimate waiting: Mickey was isolated behind glass, while Nasha tried to hold their shared future in place with conversation.

The symptoms began within hours. Mickey first mistook his worsening condition for anxiety, but he soon developed a fever; by the third hour he was coughing, and half an hour later he brought up blood. Nasha had largely fallen silent, yet remained at the window with one hand against the glass. At the four-hour mark, Mickey managed to tell her to leave before the illness grew worse. She stayed. When his condition became unmistakably severe, she persuaded Arkady to put her in a biohazard suit and let her into the chamber.

Mickey initially did not want Nasha to see what followed. As the coughing intensified, however, he cracked a rib and brought up pieces of tissue. Nasha held his hand, cradled his head against her belly, and talked him through the illness. He died about an hour later from pulmonary hemorrhage, after a prolonged and painful first exposure. The experiment demonstrated the distance between being able to replace a body and being spared the experience of dying: backup made another iteration possible, but it did nothing to shorten this one’s final hours.

Repeated Iterations and the Cost of Survival

The colony did not end the testing after Mickey Barnes’s first death. It took almost a week before he was sent back into the chamber, and he spent most of that interval with Nasha: they talked, played a card game she had brought from the Drakkar, and mostly held each other. After four days, Burke administered six injections, switching from Mickey’s already bruising left shoulder to the other arm. Two were immune boosters; four were vaccines against the microorganisms that had killed his previous iteration. Burke allowed two days for them to take effect, but offered no confident assurance that the next exposure would be survivable.

Mickey’s next iteration, Mickey4, disrupted the information system that made the trials useful to Command. As soon as the chamber vents opened, he unplugged the scanning-helmet leads and removed the helmet, so Mickey Barnes later had no memory of what happened to him. He learned the details from surveillance footage: Mickey4 died in Nasha’s arms, as Mickey3 had. In the chamber, he had warned Arkady that the biohazard suits were fragile and challenged him to come inside if he wanted to make him comply. The refusal was more than a moment of defiance; it also severed the continuous record the experiment was meant to preserve.

Mickey4 lasted more than twenty-four hours before showing symptoms, substantially longer than Mickey3. Once the illness began, however, it advanced with brutal speed. It first ravaged his gastrointestinal tract, producing heavy bloody fluid loss, then attacked his liver and kidneys. He became septic at thirty-two hours, unconscious at thirty-six, and was dead by hour forty. Mickey Barnes woke again on the floor, this time facing eleven needles. The vaccines and repeated exposures had not ended the cycle; each body’s failure instead supplied the basis for another attempt.

On a later exposure, the apparent progress was measured in days without symptoms. After one day and then two, Mickey felt fine; after three, he was stiff and cranky from sleeping in a chair, and his snack drawer was running low. The pattern repeated three times. By the end, his skin was bloodred and he felt flayed, but he was alive—and, for the first time, walked out of the isolation chamber. Survival was only provisional: Arkady sent him to Medical, and Nasha asked to accompany him, while the testing continued to determine what the local organisms had done.

The Parasite and the Cost of Survival

At Medical, a scan revealed an unexplained dark shape in Mickey Barnes’s brain. Burke ruled out a tumor because the body was barely a week old, but he could not identify the growth; his response was to send Mickey back into the chamber until they found out what it was. The first survival, then, had not ended the trials. It had exposed another local hazard, and Mickey’s newly printed body became its next testing ground.

The infection took nearly a month to kill him. Headaches gave way to seizures and progressive dementia; in his final week, he experienced hallucinations that undermined his trust in Nasha and convinced him that his other iterations were suffering in hell. The parasites eventually killed him, and their larvae emerged from his mouth, nose, and ears. Arkady sterilized them and put the remains into the recycler, where they would be used to make another Mickey.

The sequence makes the trial’s logic difficult to separate from its human cost. The chamber produces knowledge by exposing one person, again and again, to lethal organisms; a death can be followed by another body, but neither the pain nor the time spent dying is erased. Even a successful exit from the chamber proves temporary when an unknown infection is discovered afterward. Mickey’s repeated deaths thus reveal the limit of backup as protection: it can restore the subject for further testing, while leaving each iteration to undergo its own fear, illness, and bodily collapse.