Jun Wu Xie has not much interest in fights between youths in the Middle Realm. Their movements from what she saw were too slow and only people in the Elder levels from the Twelve Palaces would pique her interest. But one thing that the young girl mentioned when she said "Spirit Jade Palace" had caused her a little puzzlement.
Qiao Chu and the others had specifically told her all the twelve names the Twelve Palaces went by and she had not heard them mentioning anything about a Spirit Jade Palace.
Jun Wu Xie casually abducted a big goofy looking passerby and poured a vial of her truth serum "medicine" down his throat to make him spill out everything he knew about the Spirit Jade Palace.
In truth, more than a thousand years ago, the Middle Realm did not only have Twelve Palaces. There had been another thirteenth palace, the Spirit Jade Palace.