Here is the proofread version of the text with improved flow and readability:

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In the Thirty-Third Heaven, before a brand new black-and-white palace, Thea, Yaretzi, and Youcef appeared after three lights flickered.

“What are we doing here?” Youcef asked.

Yaretzi also looked at Thea.

“This is the new palace built by Yehria,” Thea said calmly. “At the same time, it’s where Waitara Path’s soul spirit used to hide. There should be many surprises inside.”

Then, she went up the stairs and pus