Perimeter Beacon

I examined the shadowed recess behind the reinforced hardcover row. Visibility in this sector dropped sharply after sunset. A functional observation outpost requires consistent illumination. On the timber plank lay a transparent plastic binder clip and a loose brass thumbtack. I gripped the chrome spring-wire lever of the clip and compressed it against the shelf floor. The mechanical jaw snapped open with a sharp, resonant snap. I clamped it securely over the brass pin's flat head, anchoring the reflective disk at a forty-five-degree tilt toward the open bedroom. The distant ceiling lamp caught the angled brass, channeling a sharp specular beam directly across my ledge. Sector illumination operational.