Completed the challenge? 

Cannot master me? 

Master? 

A very limited portion of me? 

These words rang in Wu Yu's ears. 

The flow of time circled and rushed constantly, flowing towards the end that one couldn't see. 

Looking at the extreme top of the long river, one also couldn't see the origin of it. 

When Wu Yu digested and understood that sentence, he was naturally exhilarated! 

That huge beast in the long river of time was most likely the immortal treasure spirit of this dao treasure! 

"At this moment, I can control ordinary dao treasures. Yet it claims that I can't control him. This only goes to show that the level of this dao treasure is at least at the level of an advanced dao treasure! Perhaps, it might even be a seraphic dao treasure that has 500,000 spirit designs or more!" 

Although it wasn't as precious as the Ruyi Jingu Bang, Wu Yu could at least use it. 

Moreover, the other party had recognized him as its owner. It was just that it felt Wu Yu didn't possess the capabilities to control it and therefore he couldn't maximize the full effects of this little white pagoda. 

Nonetheless, it didn't matter. He would have the time to slowly discover it in the future. 

In this world of the endless river of time, Wu Yu felt like it was hard to speak. Suddenly, he felt a sharp pain...