The hound looked rather wolfish, and its body was surrounded by plumes of purplish-black smoke. Now that the hunters of Team Zenith could sense it, they were shocked they hadn't noticed it before.

"Because of its bodily structure and its status as a higher-dimensional being, it can't be detected with the naked eye. The reason all of you were able to glimpse it so easily is because this is the eighteenth layer of space. On the first few layers, even sensing it would be an arduous task."

In other words, in 'ordinary' space, only Zhang Lie and Yang Ze might be able to avoid being killed by a stealth attack.

Nightdemon continued, "That's a mass of amorphous matter that never stops...