– A grainy thumbnail blinked into view. It showed a limestone cave entrance draped in moss.

Elias clicked the final download link. The progress bar crawled.

The name "иўЃе©­з¶­"—Yuan Tianwei—was a legend in the underground urban exploration circles. He was a photographer who had vanished in the high-altitude forests of Sichuan a year ago. Rumor had it his final "Trip" folder contained coordinates to something that shouldn't exist.

– The fans in his laptop began to whine, struggling with the encrypted data.

The third file wasn't an image. It was a text document titled READ_ME_BEFORE_THEY_ARRIVE.txt .