Inside, the nest pulsed with life. Dozens—maybe hundreds—of tiny spiders crawled across its surface, weaving in and out of threads like construction workers on scaffolding. Others sat still, waiting, as if guarding something. And then I saw them: small clusters of white eggs, tucked tightly inside, just waiting to hatch. The entire structure wasn’t just a web. It was a city. A hidden ecosystem that had been thriving, growing, and expanding just a few feet from where we lived.