Chapter 640: Blood Debts Must Be Paid in Blood

The night air was cool and still. "Grandpa, why aren't you asleep yet?" Solomon had just lain down when he heard knocking at the door. He looked up to see Xiao Zhongguo standing at the threshold, his temples streaked with gray, holding a cup of tea. "You took the invitation from the Martial Arts Bureau?" Xiao Zhongguo entered the room, his old body still occasionally showed the steely spirit of his days on the battlefield. "Yes." Solomon nodded. He had never hidden anything from his grandfather. Xiao...