In the midst of his thoughts.
The palms of the two black-robed men suddenly crackled with arcs of purple lightning.
At the instant the lightning arcs appeared, Housekeeper Wu, who was fighting four other black-robed men nearby, suddenly narrowed his pupils, his expression changing abruptly!
"That's... Profound Mystery Thunder Light!"
Housekeeper Wu shouted anxiously, "Young Master, run!"
Qin Qi likewise sensed the extraordinary nature of the purple lightning, and without hesitation, retreated dozens of yards backward.
Yet the two black-robed men manipulating the purple lightning only sneered.
"Since you know this is Profound Mystery Thunder Light, you should be aware—once Profound Mystery Thunder Light locks onto you, escape is impossible!"
The black-robed man twisted his neck, "This Profound Mystery Thunder Light was cultivated using the inner core of a Thunder Beast. Even Elite Demons at the Core Formation Stage find it almost impossible to withstand a single strike!"
