Cheng Yunzheng is certainly a smart person, and an ambitious one at that, aiming to seize the imperial throne.
He would never take such a risky move merely for reputation; there must be another reason.
Sun Qiying pondered.
Chu Zhiyuan said, "Mr. Sun, do you know a thing or two about it?"
"...It might be related to the Spiritual Treasure," Sun Qiying slowly replied, "Your Highness, this is not something I witnessed personally, it's just a deduction."
Chu Zhiyuan said, "By doing this, did he resonate with the Spiritual Treasure and thus obtained it?"
"Very likely so," Sun Qiying said, "The Fifth Prince is an exceedingly intelligent person."
Chu Zhiyuan slowly nodded.
This makes sense. With enough fame and prestige, it forms the cornerstone for seizing the imperial throne, while also obtaining a Spiritual Treasure.
The wonders of the Spiritual Treasure might have not been fully comprehended by Cheng Yunzheng due to his qualifications.
