chapter 37 Shocked the whole audience

As a Pneuma Martial Realm master, Eithan discovered that although Archie also performed Third Stage Martial Technique, they were much more mysterious than Harrison's Martial Techniques.
According to his experience, such a Martial Techniques was extremely difficult to practice, but Archie had obviously reached a great level of cultivation, so besides being shocked, he wanted to know what kind of Martial Techniques it was.
"Grandpa, if I guess correctly, what Archie performed was the...