This was an opportunity they had fought hard to secure, so of course they wouldn't give it up. What's more, because Hodan had led the family to avenge their great wrong, he had become their idol, a spiritual totem of sorts.
They swore the oath Hodan had asked of them without a moment's hesitation. Even Elder Muli did the same.
Seeing that they had all sworn the Supreme Oath, Hodan breathed a sigh of relief. Then, right there in the secret chamber, he laid down layer upon layer of formations. Some concealed auras, others created illusions, and some were for attacking. In short, he set up every formation he knew.
The experts simply watched in silence as Hodan worked, not making a sound. They knew that since Hodan had made them swear such a strict Supreme Oath, what he was about to reveal must be an absolute secret, something no outsider could ever be allowed to learn.
Once he had finished, Hodan summoned his Thunder Tree from his Soul Space. It took root in the air, right in the center of the secret chamber.
The seven-colored Thunder Tree shone with dazzling light, but what most drew the experts' attention was the marks of fused Mysteries covering its surface.
This was Hodan's method. Through the Thunder Tree, he showed the experts all the Thunder Element Mysteries, as well as how to fuse them.
It was like turning the intangible insights into the Mysteries into a textbook. Everyone could follow the steps to cultivate, much like learning from elementary school all the way through a doctorate.
Of course, how much they learned depended on their own comprehension. As the saying went, a teacher could show them the door, but the rest was up to them.
Some people were gifted and could study