C1963 Two chapters as one (modified)

"What, an old fogey who hid the Four Great Years in the world of dao?" How is that possible? Even if they were to use a secret technique to seal themselves in deep sleep, they would not be able to survive for that long, right? " Jian Wuchen said with an expression of disbelief when he heard that Limitless had mentioned that there were still many "four great periods" of old immortals hidden within