Sealed Immortal Realm?

Ye Xuan had heard about the incident from his teacher, but not in detail. All he knew was that his teacher had suffered heavy injuries in that battle, which was why his teacher never managed to break through to the ancient realm.

Therefore, when he heard Gao Shun mention this incident, Ye Xuan replied solemnly, "Senior Brother Gao, tell me about it."

When Gao Shun saw Ye Xuan's solemn expression, he sighed and replied, "Back then, we mobilized the entire sect's forces to kill that demoness, but now she's back, and she's looking for revenge."

Eh?

Ye Xuan was stunned. That person was still alive despite the sect's best efforts back then? 

Was this a joke?

If he remembered correctly, during the great battle a hundred years ago, his teacher had told him that the Great Wilderness Divine Sect suffered heavy casualties. However, Daoist Yi Feng had self-destructed his divine bones and killed this demoness.