Jiang Lu keenly perceived the implied meaning.
"So, the attack on the Underworld had other purposes?"
"I suppose that's likely."
An Dan nodded:
"After Emperor Yin said those words, he ordered us to keep it confidential. Discussing the matters of the Netherworld was strictly forbidden throughout. Everyone personally involved was individually spoken to, and they were instructed to keep silent.
It seems Emperor Yin knew what Hades was planning and wanted to stop it, and the way to stop it was by attacking the Underworld."
"So it wasn't an illusion, but proof that Hades failed?" Lucifer asked.
"That should be the case."
Only then did Jiang Lu understand why Emperor Yin never considered Hades's existence from the beginning:
"He knew from the start what Hades was preparing, unable to extricate himself to stop his invasion of the Underworld, so he dared to attack boldly in such a crude manner.