Tang Xiu instantly released his spiritual sense and easily found the source of the cold energy. It was emitting out from the patient's body lying in bed.
Something's strange.
He thought inwardly and went straight to the bed. He reached out to move the quilt and grabbed her wrist to check her pulse. His frown went deeper as several minutes passed by and he looked even more puzzled.
'It's not a sickness! The physique is completely healthy. This woman is not sick, it's more like she's sleeping.'
Tang Xiu loosened her wrist and asked Li Cai, "Can you tell me what kind of situation your mother encountered?"
"I have no idea what happened to her, Divine Doctor Tang." Li Cai shook her head and said, "She's been in a coma for several months and fully relies on parenteral nutrition for life support."
"Anything comes to mind as to what possibly happened to her before she fell into a coma?" asked Tang Xiu again.