Katy Cobb’s expression slightly changed. Then she pondered and inquired after a while, “Who is the one who poisoned Grandfather?”

“This…” Harvey York thought for a while and said, “For this Ice Poison to enter the body, it must be consumed, and it is most likely mixed in food or drinks.

“As for who the perpetrator is, I can’t infer that, but I think you should know, Sir.”

Harvey said it firmly, which also made Katy’s expression change, again and again. Apparently, she also understood what Har