Experiment Containment Residue

A glossy green residue clings to the walls and floor of the Commerce Room, pulsing faintly like bioluminescent algae in low light. The substance glistens unevenly, leaving wet streaks where it has seeped into the porous metal surfaces. Its iridescent sheen draws the eye without illumination, suggesting something alive rather than inert. The Mentors’ alien biology reacts visibly to disturbance—the goo contracts minimally wherever keyed devices or limbs touch it, as if detecting intent. The residue leaves no particulate residue when brushed, only a faint slick that resists standard cleaning agents.