Amy's Virus Samples

Amy's Virus Samples are a cache of virus made from Amy's blood, kept in a compact, locked metal box and carried by Peter as the survivors flee the mountain. Their significance is double-edged: Lacey identifies them as the last virus, and Peter later gives one vial to Sara to treat Alicia after a bite. The samples turn a hidden supply into an urgent, consequential choice, but the available evidence does not establish whether the treatment succeeds.

Appearance and Storage

Lacey retrieves the box from a steel case bolted to the wall, opening the case with a keypad and handle. Small enough to fit in one hand, the box has no visible seams. A latch and tiny button release its two fitted halves, revealing rows of glass vials nested in foam. The liquid inside shimmers green; Peter counts eleven filled compartments and one empty one.

The box's careful construction makes its contents portable but not immediately accessible: Peter must press the button to open it, and the samples remain protected inside the foam-lined container. After identifying what it holds, he closes the lid until it clicks, wraps the box in a blanket, and puts it in his backpack alongside sealed syringes. He prepares to carry the supply through the night and down the mountain, though he has no plan for what comes after.

Origin and the Empty Compartment

Lacey tells Peter that the vials contain the last virus, made from Amy's blood and given to Amy by Lear. Peter then identifies the empty compartment as the one associated with Lacey, asking whether Lear gave her that dose. Lacey confirms only her belief that this is so. The missing vial therefore connects the stored supply to both Amy and Lacey, while its absence distinguishes Lacey's dose from the eleven samples still in the box.

Peter's recognition is not presented as a deduction from the container alone. He searches Lacey's face, but the narration says he already knows the truth and feels it as well. The exchange links the samples' material inventory to the characters' personal histories: what looks like a neat arrangement of identical compartments also records a dose already taken.

Peter's Use of a Sample

After the survivors reach the damaged house and Alicia is bound to the bed, Peter retrieves the box and syringes from his pack. Sara warns that Alicia's bleeding seems to be slowing, while Greer cautions that the bed linens restraining her may not hold if she survives. Peter does not respond to that warning; instead, he takes out one vial, returns to the bedroom, and tells Sara to give it to Alicia. When Sara asks what it is, he answers that it is Amy.

Sara gives Alicia half the vial. The samples have thus shifted from something Peter is trying to preserve during escape to a treatment administered under immediate pressure. The wording of Peter's answer identifies the dose by its origin in Amy, not by a medical explanation, and the evidence supplies no account of how the treatment is meant to work.

Uncertain Outcome and Significance

The survivors wait through the day and into the night. Alicia remains in a twilight state, at times seeming to awaken before closing her eyes again. By morning she has begun to strain against the straps. These changes follow the administration of the half-vial, but the account does not confirm that the virus caused them or establish Alicia's eventual outcome. The samples' importance is therefore inseparable from uncertainty: they are used in an attempt to save her, not shown to be a proven cure.

The episode gives the cache a practical and ethical force without resolving its medical meaning. Peter risks spending part of a supply he had just protected and packed for the journey; Sara must administer a substance whose nature she does not know until Peter names it. The surviving vials remain a finite resource, while the empty compartment and Alicia's uncertain condition prevent the box from standing for simple rescue. Its contents carry both the possibility of life and the consequences of what has already been given.