Blood Butterfly Valley was one of the nine peripheral strongholds of the Blood Frog Race. Large quantities of poisonous herbs and medicines were cultivated there. The Human Race had attacked several times, but had never managed to capture the stronghold.
The Blood Frog Race had dispatched five Void Refinement Cultivators and fifty Deity Transformation Cultivators to guard it. Relying on the grand formation, they had held their ground and refused to come out.
Gu Yu had cultivated for over two thousand years and possessed a Late Spirit Transformation cultivation level. He was stationed at the entrance to Blood Butterfly Valley with another member of his race.
On this day, he was on duty at the entrance as usual.
A Cyan Escape Light flew over from the distance at considerable speed.
"Someone's coming. Stay alert."
Gu Yu's expression tightened as he issued the reminder.
Before long, the Cyan Escape Light came to a halt, revealing a flying boat that glimmered with green light. An azure-robed old man stood aboard it. The Azure Cape draped over his shoulders was tattered, his left arm was missing, and blood had dyed his clothes red. He looked as though he had suffered a severe loss of vitality.
"It's Elder Ai."
Gu Yu relaxed slightly upon recognizing the azure-robed old man.
The Blood Frog Race occasionally sent people to harass locations occupied by the Human Race, doing their best to eliminate the Human Race's living forces and thereby weaken their strength.
The azure-robed old man was named Ai Feng. Not long ago, he had been assigned to attack Human Race cultivators.
"Let me in quickly. I have important matters to report."
Ai Feng urged them on, his voice somewhat weak. He looked as though he had suffered severe injuries.
"Sorry, Elder Ai. According to regulations, anyone