The distance was quite far, and the view was not clear. But now, as a person with three Pet Beasts arrived at the foot of the mountain, he saw more details.
On the fierce-looking rocks, from time to time, a streak of Thunder Light would explode.
And with each flash of Thunder Light, one or two slender and skinny figures appeared faintly.
Those were Thunder Sound Bats.
Having looked at those figures with his strong eyesight, Xu Ran's heart steadied slightly.
Although Thunder Sound Bats were not Dark Attribute Pet Beasts, they too preferred to be active at night.
At this moment, it was their most active time.
The surging Thunder Light throughout the mountain was also due to the fast sweeping flight of the Thunder Sound Bats.
Clearly, they as Thunder Attribute Pet Beasts relished the sensation of their movements stirring up Thunder Light and would even willingly flock to the midst of the Thunder Light as if to bathe in it.