All three felt uneasy in their hearts.
Granny Sha and her companions had long known that the Black Mountain Grandma was coming to kill Chen Shi and had been paying close attention to the matter. After all, before Chen Yindou descended into the underworld, he had entrusted Chen Shi to their care, and they naturally had to protect him well.
They knew Chen Shi was by no means a match for Black Mountain Grandma, but Black Mountain Grandma's true body was still on Black Mountain; the one in Luwei Town was a newly created body. She wouldn't come in her true body, only her Spirit Form would move to act.
As long as she used her Spirit Form, they could influence her.
The bearded strongman and the green sheep were both Evil Spirits, and stronger than Black Mountain Grandma at that. Influencing Black Mountain Grandma's judgment to make her dream of killing Chen Shi would allow them to use Black Mountain Grandma's hand to test the level of the Evil Spirit within Chen Shi.