As time passed, the four birds had flown deep into the mountains, where the surrounding vegetation was gradually sparse, and the ground was covered with barren rocks.
On the steep cliffs, there were many dark caves, which were the nests of the Ancient Dragons.
Here, Evelyn had to choose some remote paths to avoid encountering the Ancient Dragons coming and going.
Although the Ancient Dragons wouldn't care about a group of birds, this Ancient Dragon nest zone was a biological forbidden area, and most creatures dared not enter.
The sudden appearance of four birds was abnormal, and an Ancient Dragon might crush them casually.
At this point, Fang Zhou didn't dare to be careless and cast stealth spells on the four birds to prevent being discovered by the Ancient Dragons and ruining their efforts.
The deeper they flew, the fewer Ancient Dragons there were, and the types encountered became more powerful.