At that moment, a voice rang out in every Demon King's ears. "From now on, you and your forces will pay only half the price for using Black Magic."
There was no doubt that this was the voice of Xithome, the Ancestor of Dark Magic. To stop Andrew and take revenge, he had decided to offer a "half-price sale."
Demon Kings all knew some Black Magic, more or less. Andrew was the one and only Demon King who used white magic even more skillfully than Black Magic.
Using Black Magic demanded a price, such as sacrificing souls, loved ones, or emotions. Vampirism was also a form of Black Magic: sacrificing one's soul in exchange for an ageless, undying life.
The Demon Kings were delighted. With the cost of Black Magic reduced, their strength had indirectly received a considerable boost.
Chthon said, "Do everything you can to fight the Mechanical Demon King. Depending on the situation, I'll provide other assistance, such as getting Dimensional Demon Gods who worship darkness to join your side.
"Also, build the Dark God Altar as quickly as possible. Once it's completed, the Mechanical Demon King is as good as dead."
The Demon Kings grew even more excited. They had gained an immensely powerful backer. Then they closed their eyes and received the altar blueprints Chthon transmitted.
A moment later, every Demon King frowned. Not only did the Dark God Altar require vast quantities of extremely precious materials, but more importantly, it needed enormous amounts of demon flesh and souls.
"Great Chthon."
The Nightmare Demon King opened his eyes and said, "The materials are manageable. At worst, we'll spend everything we own. That's still better than becoming the Mechanical Demon King's slaves.
"But we can't provide that much demon flesh and that many souls."
"Tamper with the