Creepers Breach the Main Lock

The breach of the main lock revealed that creepers could penetrate the colony’s defenses with their mandibles and forced a lethal choice: security vented plasma into a chamber occupied by an already injured colonist rather than risk an opening into the dome.

Discovery and Damage

Mickey arrives at the main lock to find Marshall, Dugan from Biology, and Security personnel gathered there. Berto Gomez and Nasha stand apart from the group; Berto is bent close to Nasha, speaking sharply, while she looks away and shakes her head. The gathering’s tension gives way to the physical evidence of the attack on the monitor: the outer door is sealed, but a blackened, almost human-shaped figure lies in one corner. What first looks like scorched metal proves to be a hole nearly two meters across in the lock floor.

Dugan explains that something punched through the decking while Gallaher waited for the lock to cycle, then began tearing the floor away. Marshall identifies the blackened figure as Gallaher. The breach is not merely damage to a sealed chamber: it has opened a path through a place meant to control entry into the colony, making the safety of the dome the immediate stake.

The Lethal Security Decision

The breach brought the colony’s security system into a choice between an injured person and the possibility of an opening into the dome. Gallaher had been waiting for the lock to cycle when the creepers tore through the decking, shearing off most of his left leg and leaving him badly wounded and bleeding out. Security responded by using the murder hole to vent plasma into the main lock. The monitor’s blackened figure was the result of that decision, not simply evidence of the creatures’ attack.

Marshall explained that the perimeter-security AI had made the call and said he was not inclined to second-guess it: the colony could not risk a penetration into the dome. The immediate threat therefore exposed the cost of the defense as well as its purpose. The lock had been compromised from below, and protecting the larger habitat meant turning a sealed chamber into a lethal one while a colonist was still inside.

Berto identified the attackers as at least two or three creepers and pointed to their mandibles as the means by which they had cut through the structure. His account made the damage harder to dismiss as an isolated mechanical failure: the creatures had reached the lock and breached its floor, demonstrating that the colony’s perimeter could be penetrated. The scene shifts the danger from an external possibility to a security emergency already inside the colony’s defenses.

Unequal Knowledge and Human Response

The account withholds the attack itself: Mickey reaches the lock after the violence, and the threat must be reconstructed from the damaged floor, Gallaher’s remains, and other colonists’ explanations. Even the number of attackers remains approximate; Berto can identify at least two or three creepers, but the scene supplies no direct view of how they entered or what happened beat by beat. This limits certainty at the very moment the colony must act decisively, contrasting incomplete knowledge of the breach with the irreversible decision to flood the lock with plasma.

The scene also places an unresolved personal exchange beside the emergency. Before Mickey learns what happened, Berto speaks sharply to Nasha, who looks away and shakes her head; the content of their exchange is not disclosed, nor is it explicitly connected to the attack. The juxtaposition leaves the colony’s crisis embedded in strained human relations without turning that private moment into an explanation for the breach.

Mickey’s Response and the Breach’s Meaning

Mickey’s shock registers the human cost of the decision more immediately than the security rationale: he asks whether plasma was vented into the lock while one of their people was still inside. Marshall answers without disowning the choice, grounding it in the danger to the dome and the perimeter-security AI’s judgment. Berto’s account adds a further warning: he has seen creepers’ mandibles cut through things before, but their arrival beneath the lock floor makes that ability newly consequential. The scene closes not with a view of the attack, but with its evidence and the survivors’ explanations; the colony must reckon with a breach whose method is only partly understood and whose defense has already killed a wounded colonist.