At first, even if he tried his best, he could only make the door tremble slightly, hardly able to see the extent of the vibrations, and even less able to hear any sound. Such a minor disturbance was unlikely to catch anyone's attention inside.
But this was just the beginning.
He had only one chance. Using Spirit Communication with all his might, once this power was exhausted, his consciousness would dissipate instantly.
Xu Xiangyang's Spirit Communication seized the opportunity revealed when Fake Qingyue merged with Qing Yue—a fleeting chance—perhaps even the last opportunity to save Qing Yue.
There would be no next time.
Yet, he resolutely chose to act at this moment, risking everything he had.
The vibrations of the door grew more intense until, at last, the invisible hand knocked on the door panel, the resulting vibration rippling like water on a lake surface.
"Bang!"