Song Yan noticed the long slash on the hand of the old granny, it was deep and fresh as if something was stopping the wound from completely healing, she was smart enough to put two and two together. The villagers kept three bowls of blood outside their houses, one was filled with chicken blood, the second with pig and the third with human blood, however, the young woman looked completely energised and fine with rosy cheeks on the other hand it was the old granny whose complexion was pale and she looked like she was going to lie on her death bed anytime, most probably the old granny didn't want her granddaughter to suffer and that was the reason why she was slashing her hand to fill the bowl with fresh blood every night.
Sure enough, after she said that, the woman's expression changed and she glanced at the yellow talisman that had an intricate array drawn on it. " You are a master?"