"They could... create a World Secret Domain from nothing in such a short time?" Ash watched the distant war through the Gospel, as shocked as a textile worker seeing a fully automated workshop and wondering if she was about to be made obsolete. "And it's this powerful?"
He knew how strong the Forgotten Ones were. After all, these Slaughter Secret Domains had not even been loaded with Eternal Miracles yet, but they were already slaughtering the Forgotten Ones batch after batch. If it were him, he would never come out well either. But Ash was also a little confused. Since the Slaughter Secret Domains were far stronger than normal Secret Domains, why hadn't the Six-Winged Angels equipped Slaughter Secret Domains?
In truth, World Secret Domains all possessed some degree of "natural lethality." There was no need to mention a Secret Domain like Sword Rain Pool, which could threaten Demigods. Even seemingly normal Secret Domains like Mountain of Corpses and Sea of Blood, Wind Flower Snow Moon, and Wishing Pool were also life-forbidden zones: the air in Mountain of Corpses and Sea of Blood was full of viruses and bacteria; the currents and light in Wind Flower Snow Moon could injure people; the water of Wishing Pool had once been used to test the mental state of Legendary Arcanists... They were often "holy lands" born when a certain Spell School developed to a certain level. The meaning of their existence was to push artificery to its limit. And things that were too pure were often poisonous.
Even the most harmless Hanging Garden would make explorers unwilling to leave because it was too beautiful, until they starved to death in the garden just to admire beauty.
Among the ancient secrets Sonia had looked up in the Library before, little stories often appeared