The apocalypse arrives, and the walking dead roam everywhere. An oil-stained backpack in an abandoned newsstand opens the door to a shocking conspiracy! A blurry date on a yellowed medical record, a scalpel wrapped in gauze, strange yellow fluid seeping out, and the mysterious words “They fear light, not sunlight” all point to that eerie abandoned hospital. A rescue team’s signal of three short beeps followed by two long ones, a horde of corpses controlled by an unseen force, the mystery behind a little girl’s missing father, and a bite scar on Zhao Gang’s arm that came from the same source as the yellow fluid: the clues pile up! Who is guiding the walking dead? What secrets was the hospital hiding before the apocalypse? And why is Zhao Gang’s wound different? Every step of the investigation is a thrilling one, and every twist upends what you thought you knew. The truth is far more terrifying than the apocalypse itself!