Tomb Robber Family

Before he died, my grandfather handed me a bronze fortune teller: "Our family has been robbing tombs for nine generations, not for money..." "Then for what?" "Guarding the tomb." He coughed up blood and said, "Guarding an ancestor who knew all the secrets of heaven. He buried himself alive deep in the Qinling Mountains and used calculations to deduce immortality." "Success?" "He made a miscalculation, and now... He's almost crawling out." The moment I took over the calculation chips, all the calculation chips suddenly stood up and calculated by themselves. The result was only four words: seven days left.