Day after day passed.
The fluctuations of spiritual qi within the cave abode gradually subsided.
The black mist enveloping the Earth Spirit Mouse slowly dispersed, revealing the enormous spirit mouse within. The aura radiating from the Earth Spirit Mouse had unmistakably reached the third tier.
Before its advancement, the Earth Spirit Mouse had measured only about three feet from head to tail.
After successfully reaching the third tier, its body had swelled further, growing to over ten feet long. Lying there, it looked less like a spirit mouse than a full-grown bison, exuding a savage, baleful aura.
Its back was the most striking feature.
The densely packed golden spots had now merged into a single golden line stretching from its neck all the way to its tail, giving it a rather mysterious appearance.
Although the Earth Spirit Mouse had grown considerably after advancing, it was still far smaller than the Desolate Fire Sparrow.
When the Desolate Fire Sparrow had first advanced more than thirty years ago, it had stood nearly thirty feet tall. After growing further, its bloodline was now approaching the third-tier middle stage, and its height had reached nearly fifty feet.
Standing there, it looked like a small fighter jet.
This, however, was an innate difference between demon beast species. Even with equal strength, different species could vary enormously in size.
The Earthrock Python beside them was far larger than either the Earth Spirit Mouse or the Desolate Fire Sparrow, yet in front of those two beasts, it could do nothing but tremble.
Whoosh!
Having successfully advanced, the Earth Spirit Mouse turned into a black shadow and darted up to Li Ping and Meng Wanjun, nuzzling them with its head and conveying its joy through its consciousness.
"Mousey, you're amazing!"
Meng Wanjun stroked the Earth Spirit Mouse's head