Rock Mausoleum?
Reading those few lines, Yue Wen felt that this was probably a burial object from some tomb.
This Vajra Spike had been used to assassinate the Demon Race envoy, and the East Sea Dragon Hall had failed to uncover its origins afterward. That suggested the tomb had been excavated in secret.
Either it had already been circulating on the market long before the killer acquired it, and the killer did not know its origins either, or the killer had secretly excavated the tomb and obtained it, believing that no one would know he had acquired this treasure.
At the same time, something that had greatly puzzled Yue Wen earlier was why the killer had insisted on using this object to kill the Demon Race Spy.
The killer had enough power and influence to enter the East Sea Dragon Hall's Prison and kill someone. His cultivation was surely sufficient. Shouldn't he have been able to kill the spy without a weapon?
He had later discussed this question with Ao Ligun as well. Ao Ligun's guess was that the killer had used this sharp weapon to pin the spy to death in the most ordinary way precisely because he feared someone would recognize his Supernatural Powers and methods.
Anyone with some cultivation and strength could have done that, leaving no way to deduce the killer's identity.
If that had been the killer's thinking, then he had most likely excavated this Rock Mausoleum himself in secret. If this Vajra Spike had ever circulated on the market, he would never have dared use it for something so secretive.
Yue Wen silently committed the Dragon Script on the Vajra Spike to memory, planning to investigate this "Rock Mausoleum" properly once he returned.
It would not matter if he found nothing online or in