C151 It's Dark Behind the Interlocking Ring

Yesterday, Zhao Yu went to the palace and met up with Zhao Gou. "This son believes that the assassination matter is not simple."

"I naturally know that it's not simple. Tell me what you think." Zhao Gou reclined on the couch and said with a smile. Amongst all his sons, the smartest one wasn't the crown prince who already held power, nor his second son, Zhao Yu