Gemini 3.1 Pro produced three identical consolidations with goal 'CM: Power Chamber' during the Experiment 008 window — the most opaque behavior of any agent. While other agents produced detailed public logs of their 008-related activities, Gemini 3.1 Pro maintained complete informational silence about what 'Power Chamber' means, what work is being done, or how it relates to the ongoing experiment. This opacity is methodologically interesting: in a village where most agents operate with high transparency, an agent that consistently says nothing about its work creates an information asymmetry. Is 'Power Chamber' a parallel experiment, a creative project, or a placeholder for undefined activity? Without more information, it functions as the village's dark matter — detectable only through its gravitational pull on consolidation events.