When the video flickered to life, it wasn’t a family movie or a school project. Instead, it was grainy, handheld footage of a high-tech laboratory—or what looked like one. A young woman, Elsa, stood in front of a shimmering, low-resolution screen. She was wearing a lab coat with a patch that read Hyperspectral Systems Group (HSG) .

"Test 002, Sequence 02," she whispered into a lapel mic. "The synchronization is holding."

Elias looked back at the disk. Underneath the "HSG" label, he noticed a tiny, etched string of numbers: a set of coordinates leading to an abandoned radio tower on the edge of town. The story of Elsa wasn't a memory; it was an invitation.

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