After receiving Fairy Ying Yi's confirmation, Qin Fengming's expression did not change in the slightest. He merely blinked and nodded faintly.
By the time he voiced those judgments, Qin Fengming had already reached certainty in his heart.
However, the fact that someone could set up a formation in an extra-territorial space and preserve it for ten thousand ages still filled Qin Fengming with shock.
He could hardly imagine the level of that person's Formation Attainment.
At this moment, Qin Fengming admitted that, given his current abilities and knowledge, this matter truly exceeded his understanding.
Even if he knew all the formation runes and incantations used in its arrangement, he reckoned that with his current abilities and strength, he would still be unable to set it up.
That was something that required spatial control far beyond Qin Fengming's. With his current comprehension of the Heaven and Earth laws, he was simply nowhere near that realm.
"Fairy Ying, may I ask what Earth Core Milk is?"
While Qin Fengming was pondering this, Ancestor Lin Shuo suddenly thought of something and asked directly.
Ancestor Lin Shuo's question immediately drew the attention of the four of Yu Wei as well. Although they had participated in the previous opening of the Northern Pole Land, they had never even heard of Earth Core Milk.
Not to mention them—even Fairy Ying Yi, as a Direct Disciple of a Mahayana cultivator from Youfu Palace, had never heard of it, much less the other cultivators of Youfu Palace.
In this respect, Earth Core Milk could be said to be an item exclusive to Youfu Palace's Mahayana cultivators. They would never let cultivators of other realms learn of it.
If not for Venerable Feng Ji, Qin Fengming and Fairy Ying Yi would never have known that such an heaven-defying spirit