Fang Zhou grabbed Aya's shoulder and cast a spell from the Yin Yang Treasure Book.
Their figures immediately became hazy and transparent, and eventually vanished.
This spell is specifically used for stealth, capable of isolating even Divine Sense.
After they hid, it wasn't long before a small black dot appeared in the distant sky, rapidly enlarging.
Fang Zhou's Divine Sense enveloped a large area around them, having already sensed what was coming— a Grey Ancient Dragon.
This Ancient Dragon wasn't very large, approximately over ten meters long. Fang Zhou intuitively judged its strength to be around the Innate Realm.
Aya also whispered softly, "This is the lowest tier of Grey Dragon, not threatening."
It's not threatening to Fang Zhou and Aya, but for the tribe below, it's a natural enemy.
The tribe had bred a type of bird to keep watch in the sky, which was now emitting piercing screeches.