When Zha Daye typed the last number in front of the computer, the fluorescent tube in the office suddenly made a strange sizzling sound. She rubbed her sore eyes, the financial statements on the screen were still flashing, and the roots of the pothos grown in water on the corner of the table were turning yellow at a speed visible to the naked eye. As the financial director of a biotechnology company, she always had an instinctive sensitivity to abnormal life phenomena. But before she could think about it, the sky outside the window suddenly darkened, as if someone had suddenly pulled a heavy curtain shut.
