As the North Dragon King continuously siphoned away their cultivation and life force, the West Dragon King and South Dragon King grew weaker and weaker.
The flesh on their bodies began to shrivel, their skin losing all color and turning pale.
Even their hair visibly faded to gray-white.
The two of them were completely unable to break free.
Although the Three Great Dragon Kings were all Late Three-star Dou Saints, the North Dragon King was the strongest among them.
He was only a single step away from becoming a Four-Star Dou Saint.
As the North Dragon King absorbed the two men's cultivation and life force, his aura suddenly surged.
In just a short while, he had reached the middle stage of Four-Star Dou Saint.
Not only that, his aura continued to grow stronger.
The West Dragon King and South Dragon King had already been weaker than him to begin with. Now, not only were they injured, but their life force and cultivation were continuously draining away.
As they were now, there was no way they could escape the North Dragon King's grasp.
They could only watch in despair as their lives and cultivation rapidly slipped away.
The sensation was tormenting beyond measure.
At that moment, they would rather Zi Yan had simply slain them with a single sword strike.
As time passed, a trace of madness gradually appeared in the North Dragon King's eyes.
This Secret Method was not without a price for him either.
Just like the Dragon Transformation Demon Array, which caused Ancient Void Dragons to lose their sanity and retain only their beastly nature.
Although the Secret Method he was using now would not make him completely lose his mind, it would make him more emotional, more violent, and more prone to anger.
It would also add