Mu Dan was a bit surprised: "Is it a treasure left behind by the Yina Civilization?"
"No," Wang Jixuan immediately replied, "The timeline doesn't match up."
"Timeline?"
"Yes."
Master Wang explained:
"The Yina Civilization acquired this Stone of the Past before the arrival of the Three Realms Wanderer; this time point is quite early."
"The Mother Star of the Yina Civilization has always been ancient Earth, this hasn't changed, and the time point when the Moon has accompanied Earth is calculated in billions of years."
"As for this subspace, it originally relies on Spiritual Energy and Spiritual Power. Before encountering the Three Realms Wanderer, the Yina Civilization had no Spiritual Energy to use."
Mu Dan suggested: "Isn't it possible that the Yina Civilization used this stone as a key, and in the later period of their civilization, after the residual soul of the Three Realms Wanderer fell asleep, they created this subspace?"
"You have a point there too."
