C245 Hundred Ghosts Formation!

The stick moved up and down rhythmically, yet there was no visible means of propulsion. Even Ye Yu, a veteran of countless battles, was taken aback by the sight. How could there be a device operating without any power? Surely, if such a thing existed, scientists wouldn't bother with the concept of a perpetual motion machine.

But Ye Yu was not one to dwell on shock for long