"Karl has fallen!"
Langfellow stirred from his meditative rest.
Karl's death had been both expected and unexpected.
Among the Demon Kings of the Moxialuo Clan,
he was far from weak.
By the standards of the Great Thousand World, Karl was a Second-Tier Immortal, not far from becoming a Third-Tier Immortal.
He had been sent to probe the Outer Battlefield
precisely because he was powerful enough.
After all, even if beings at his level encountered some supreme treasure, their chances of escaping were still quite high.
Yet,
Karl had fallen in the end.
Fortunately, before he died, he had managed to send back some relevant information.
On the imperial throne, Langfellow's body seemed wreathed in black mist, obscuring his appearance.
"When the Demon Lords entered the cities, they did not provoke a reaction from that Supreme Treasure. But the moment Karl entered a city, he was attacked by it."
"Even the Demon Lords who had entered the cities earlier were killed along with him.
"That means there are limits to what triggers the Supreme Treasure."
From the information Karl had sent back, it was not difficult to discern the limitations of the Supreme Treasure.
According to Langfellow's deduction,
Only the entry of a being at the Demon King level would trigger the Supreme Treasure's retaliation.
In other words,
Anyone below the Demon King level should not provoke the Supreme Treasure.
To put it bluntly, Void Fiends below the Demon King level were beneath the Supreme Treasure's notice.
As for why all the Void Fiends had died the first time, even though no Demon Kings had infiltrated the cities,
Langfellow believed that anomaly had been caused by the Supreme Treasure's initial appearance.
"With the Supreme Treasure in place, experts at the Demon King level and above cannot approach the Outer Battlefield unnoticed.