Black flames surfaced in Xiao Yu's eyes once more. Above the previously empty black hole, there now appeared a gigantic invisible fire python, over ten meters wide and of unknown length.
The invisible flame that had just appeared within Xiao Yu's heart enveloped the entire serpent body. Its enormous triangular eyes stared coldly at the two of them.
It furiously slammed into the top of the black hole, only to be blocked by a layer of wrinkled space. Invisible flames surged forth, battering the space above again and again, yet it could not break free of the black hole's confines. After letting out an unwilling hiss, its triangular eyes glanced at Xiao Yu once more before it turned around and sank back into the black hole.
Only after the fire python vanished did the rising temperature around them gradually return to normal.
Elder Liu sensed the surrounding space returning to normal and muttered with lingering fear, "That was close. Why did that thing suddenly awaken?"
"Elder Liu, what was that..." Xiao Yu knew it was the Fallen Heart Flame, but Xiao Yan still had no idea. With fear still lingering on his face, he asked Elder Liu.
Only after hearing Xiao Yan's question did Elder Liu fully recover his senses. He solemnly said to them, "You must not mention what happened here today to anyone! The central area was not supposed to be accessible to students. I was somewhat negligent today."
Seeing Elder Liu's grave expression, Xiao Yu and Xiao Yan hurriedly agreed.
"We didn't see anything. We only noticed that the temperature had risen a little."
Hearing their words, Elder Liu nodded without suspicion. After all, even he could not see that thing and could only rely on his senses to roughly judge its location and shape.
"Alright, let's