Zhang Chi quickly focused his suspicions on Long Yi.
It wasn't that he didn't trust Gu Youyou, but after ruling out all the other possibilities, only this one remained.
Many years ago, no one had ever heard of a Superior Grade Spirit Artifact being held in Hua Long Palace. Thus, it was likely that only Long Yi would have known about it, along with the person who obtained the Dragon Horn.
If Gu Youyou had known the location of Long Yi's Dragon Horn earlier, she would not have hesitated to take it.
Do you not understand the significance of thieves only stealing valuable items?
Gu Youyou was an old hand at plucking treasures; would she spare any treasure after killing someone?
Zhang Chi wondered if the situation at that time had been very urgent, giving Gu Youyou no time to search for the treasure.