Marked Dead

Marked Dead is an infection made by Zeth'tunnoth that is able to take over everything with a soul inside of it.

Symptoms

There are two types of infections. A host infection and a husk infection.
When your soul gets infected by Zeth, your mind and personality get dissolved. At first, the infected creature gains an insatiable hunger. It longs for the souls of other creatures and infects them in the process. The creatures are turned into husks that now serve the strongest host.

Host infection

The host is almost always chosen at random when the last host in the region has perished, or when there are no other infected around.
As more souls are consumed the host will undergo more bodily changes, mainly getting more mouths and more eyes as these are the ways Zeth interacts with the world. It uses its host to get more influence in the material plane, and this is done by obtaining power through the consuming of souls.

Weaknesses

Creatures infected with this ailment always have some sort of eye stock coming right out of the brain. This is the eye that Zeth uses to observe the world. Eliminating the eye is a sure way to slow down Zeth in his infection process.