"We burned it."
Langit nodded in response to that. "And it's not easy, is it?" he guessed, justified by a member of Wisnu's group.
They know that creatures that look like them and like to eat humans have strength that is many times greater than that of ordinary humans. Hunters like them were quite able to match the strength of the wrenas because they were used to dealing with many wild beasts, some of the animals in the forest were even much bigger than their bodies.
It took two to three hunters to defeat a wrena and make them die before they managed to burn it. No one wants to let these terrible demons live, because the last time a guard freed the demon, his village was destroyed because the wrena was able to heal his wounds very quickly.