Ding!
A metallic pillar about as thick as a finger was firmly pounded into the ground by a tremendous force, sinking about a third of the way in, while the remaining two thirds were just about waist-high to an adult.
The metallic pillar was perfectly black, with extremely fine grooves inscribed into its surface like thorns scaling a pillar.
On the road, black-clad individuals planted these pillars into the ground every few yards. And it wasn't simply done randomly, but in a pattern with a clear rationale. From a top-view, one could see an incomplete black pattern gradually taking shape, like some sort of ceremony rail.
In particular, two muscular individuals clad in black are transporting a peculiar gadget, taking step after burdensome step towards the plaza at the heart of the mansion. After reaching their destination, the gadget was gently settled down.
