The sky was dim, the ground beneath the feet was dry, and the air was full of the stench of corruption. This was Roy's first impression of the Mardum Prison.
This was a dimensional space that Sargeras had opened up alone. It didn't exist in any world but existed in the crevice between the Void and reality. There was no exit, nor were there any flaws to exploit. A gigantic land floated in the darkness, without any sun, moon, or stars around. This isolated island imprisoned all the Twisting Nether demons that Sargeras had captured.
Darkness didn't affect the vision of demons. After Roy entered, he floated above the land and observed the demons here. The number was terrifying. This place was Sargeras's achievement of fighting against the Twisting Nether for hundreds or even thousands of years. Over such a long time, he had imprisoned at least hundreds of millions of demons.
