The reason why she was frightened and worried for a moment was because she already knew that she wasn't passing the barrier only by herself.
There was someone else with her. In fact, to be more exact there were several other people that were going through the barrier with her, like Tianlong Yun and Shadow Clan members.
How was that possible?
Very simple actually, all of them were inside the Old Pouch that was put once again in Tianlong Yun's possession.
There was a reason why Tianlong Yun tarried so much to come and enter the Ancestor's Graveyard, and that was because he was waiting for the Old Pouch to be re-delivered to him.
While he was in the other dimension of the Soul Land, he had handed over his Old Pouch to Tianlong Hu Die for use, which used it to transport people and materials inside the Rock Fortress City.
