Lin Yan from Songshan Village is the 37th generation descendant of the tomb keeper. According to village rules, a "grave-guarding pine" is planted for every generation of people born. The tree dies while people are still there - but the pine in his house suddenly oozed warm "blood", and the soft sound of fingernails scratching the coffin could be heard underground. The ancient tomb without a monument that had not been opened for 800 years was quietly waking up.