According to the Dark Demon Lord, the true highest will of both the Demon Suppression Bureau and the Demon Control Department is actually the successive monarchs of Great Qin.
As such, the Qin Emperor should have been aware of the existence of this Black Coffin, and perhaps it was the will of this monarch to place it in the Imperial Spirit Palace.
In that case, it wouldn't be too easy for Zhou Dao to act.
"Qin Emperor..."
Zhou Dao's thoughts gradually calmed down, and he held more reverence and wariness towards this unfathomable Emperor than ever before.
"I'll wait a bit longer," Zhou Dao silently mused to himself.
His strength still needed to continue increasing, and once he stepped into the [Breaking Boundary Realm] and cultivated the [Outer World], his combat power and survival ability would both greatly improve.