The black sphere transformed into a beam of light, shooting into Ying Yue's brain.
Then, it easily broke through and entered Ying Yue's Sea of Consciousness, also known as the Spirit Space.
"Good kid, this Spirit Space is actually so vast!"
Upon reaching the Sea of Consciousness, the black sphere shook and transformed into a horse-like creature as black as ink, with a sharp horn on its head.
Six eyes grew on each side of its nose, and below the horn, on its forehead, were a pair of eerie scarlet eyes.
A total of 14 eyes whirled around, agilely observing Ying Yue's Sea of Consciousness, and upon seeing this, it was astonished.
The Sea of Consciousness seemed like a boundless starry sky, vast and endless. A rough estimate suggested it was at least several light years across, which greatly surprised the Nightmare Beast.