"Is that all?" Xuan Yuanjun asked Huang Xiao, who stood before him on the sea outside the formation.
Huang Xiao had come out of the formation alone to relay Xuan Yuanxiang's insights into it to Xuan Yuanjun.
Huo Lian and Dugu Sheng had remained inside.
Sending someone out of the formation still came at a considerable cost to Xuan Yuanxiang.
The three of them were already quite strong now. If all three frequently went in and out together, even Xuan Yuanxiang would find it too much to bear.
After all, someone would certainly need to go in and out to maintain contact between those inside and outside the formation, and would have to do so quite often.
Dugu Sheng should originally have been the most suitable choice. He was the weakest, so sending him in and out would cost the least.
Unfortunately, his understanding of the formation arts fell short of Huang Xiao's.
Huo Lian, meanwhile, surpassed Huang Xiao in the formation arts, so he stayed inside to study the formation together with Xuan Yuanxiang and the others.
Xuan Yuanxiang had already organized the younger generation on the island who were proficient in formations to study it together. They were giving it their all.
Thus, the task of going in and out to maintain contact fell to Huang Xiao.
Seeing Huang Xiao nod, Xuan Yuanjun shook his head slightly and sighed. "It seems he hasn't made much progress in the formation arts over the years."
Huang Xiao could hardly respond to that.
Surely only Senior Xuan Yuanxiang's father was qualified to judge him.
"That makes breaking this formation considerably more difficult," Xuan Yuanjun added.
Longevity Daoist's formation was exceedingly intricate. Even for him, breaking it would not be easy.
Unfortunately, Xuan Yuanxiang's insights into the formation from within were still