In the Land of Thunder Evolution, he had to face thunder beasts at every moment. Even though some thunder beasts had dull senses, there seemed to be some inexplicable connection between them and Tie Li, allowing them to always find him.
Only when facing thunder beasts with dull senses did Tie Li have a chance to rest.
Thunder beasts were not difficult to deal with, but they were troublesome. Their nearly endless numbers meant he had to face them constantly.
Killing a thunder beast rewarded him with five hundred years' worth of Soul Bone age. The rewards were generous, but he had to remain in the Land of Thunder Evolution for an entire year.
"Sizzle."
After slaying another thunder beast, the five hundred years of Soul Bone age were used to enhance his External Soul Bone.
The age of his leg Soul Bones had already reached eighty thousand years, but the External Soul Bone was the most important. Tie Li could sense that his bone wings were just one step away from their next evolution.
The one-year trial was about to end. This was already the limit of what Tie Li could achieve.
Another cage imprisoning a thunder beast opened. This time, the thunder beast that emerged had a noticeably more formidable aura.
"This thunder beast is a little unusual." Tie Li furrowed his brow. He had become exceptionally sensitive to lightning attributes, and he could judge their strength from the fluctuations of lightning around them.
This thunder beast was stronger than the previous ones.
"Sizzle, sizzle."
A streak of purple lightning traced a beautiful arc through the air and appeared before Tie Li in less than three breaths.
Purple lightning covered its plumage. With its wings spread, it measured a full five meters across. Its talons were sharp and