Distorted Presence

Angor was wearing clothes. However, they were only manifestations created by him to hide his form; they couldn't hide the strange green lines growing on his back.

The witch considered and made sure that whatever was growing on the boy would keep expanding as it drew more nightmare energy until it completely covered the entire back of that Nightmare Watcher.

Anything that lived inside Nightmare Realm knew about these "marks". Yet the witch failed to recognize who left that one.

She might be the dominator of Witch's Town, but there were way more terrifying presences in the other parts of Nightmare Realm. Just like how she failed to recognize the owner of the mark, she did not see a pure stream of soul energy slowly replenishing Angor's soul, and that the source of the energy was connected to an unknown realm.

While providing energy for Angor, the mark also glowed brightly, which allowed certain beings to notice Angor's position.