The Demon Empress Appeared On The Sacrificial Altar

"Great, we've been waiting for this moment for a very long time. No one can stop us this time."

As he was speaking, he leaped into the deep cavern behind him. 

He dropped down for a few thousand meters akin to a free falling object. A dark green radiance ignited around his body to slow down his falling momentum. He landed on the ground firmly. 

At present, a dark purple radiance was glowing on the ground underneath his feet. The radiance flickered and pulsated weakly but exuded a strange, magical feeling. 

Upon closer inspection, one could see the glow coming from the soul circuits which were inscribed on the ground. The terrifying part was a purple-black liquid filled the insides of these soul circuits. It carried a strong, bloody stench. 

The liquid came from dried blood. How much fresh blood did it take to fill the entire circuit?

There was no wind blowing in here, but a cold, gloomy aura was pervading the space.