The moment the sound rang beside his ear, it also exploded inside his mind!
The cultivator, who had yet to react, instantly spat out a mouthful of blood, his face turning deathly pale.
Without the slightest hesitation, he took out an immortal pill from his Storage Ring and swallowed it.
After taking the pill, his complexion quickly improved considerably.
Ultimately, the actual damage caused by this heartbeat was not as severe as it appeared. It was merely superficial bodily injuries, which were easy enough to recover from.
Still, the cultivator immediately erected an invisible Immortal Essence Power barrier around his body.
If such flesh-wounding injuries accumulated, they would have a considerable impact on him as well.
Yet this cultivator had no time to consider any of that, because he discovered that the sound had come from the seemingly boundless "wall" a million li away.
He even saw that when the heartbeat sounded, the "wall" swelled and contracted slightly.
After it expanded and contracted, the blood-red seawater beside the "wall" surged into enormous waves.
The waves continued spreading into the distance.
The cultivator stared blankly for a while before slowly turning to Changfeng and pointing at the distant wall. "Senior, this is..."
Changfeng smiled. "You may have already guessed it. That's right, this is the heart that made the heartbeat."
Upon hearing this, the cultivator stared in shock at the boundless heart. He could not imagine what kind of living creature could possess such an enormous heart.
"Se... Senior, what kind of creature's heart is this?" the cultivator murmured instinctively.
"This heart is several billion li in size. As for what creature it belongs to, I don't know."
"Fellow Daoist, let us part ways here!" Changfeng said as he bid the cultivator farewell and flew toward the heart's outer wall.
He