Even with the probe magical equipment on Neltharion whose perceptive range was not far, Li Yao could still sense the ripples of various sorts of spiritual waves spreading in the sea of stars.
It was certainly not natural radiation but the remaining traces left by some marvelous weapons after they were activated to the maximum.
The metal debris that was captured by Neltharion every now and then dated back to different time periods, too. Some of the remnants were obviously torn apart and melted only recently.
Li Yao also vaguely sensed that the most resourceful area at the center of the galaxy had signs that many starships were sailing, and there was an enormous space gate made of hundreds of star beacons.
Fleets from other Sectors would occasionally jump to this place, guided by the space gate.
Even the unmanned crystal cameras floating in the vacuum of the space were growing larger and larger in number, too, forming an impenetrable line of alarm.