At first, the sound was faint. THUMP—THUMP—
It sounded like a heartbeat, but a subtle ticking was interwoven with the thumps.
What was even stranger was that, as the sound pulsed, everyone's hearts seemed to fall under its control, beginning to beat in time with it.
They had no control at all.
The strain on their hearts grew heavier and heavier, and soon, some couldn't bear it any longer.
Everyone clutched their chests, their faces contorted in pain. The few ordinary people from the research team turned deathly pale and collapsed. Even some of the superpower users began to vomit blood and tremble...
Instinctively, everyone formed a circle, gripping their weapons tightly as they scanned their surroundings.
Zhou Yue walked up to Gu Xi. "Miss Gu, what's going on?"
His tone was harsh, but you could still detect a hint of restraint.
"Don't you know?" Gu Xi turned to look at him, her question sudden and strange.
