Chapter 579: Chapter 270 The Return of the Black Hole_2

Of course, Wu Rongkuan was standing at the forefront as usual, gazing at the sky above with a grave look in his eyes.

He was worried too.

In fact, if the timing of the black hole's opening remained unchanged, they could still gather some information; of course, they also had some preparations in place.

If, from now on, the timing of the black hole's opening differed and became irregular, that would truly be a disaster.

Indeed, if they could not grasp the timing of the black hole, then they would face even greater difficulties, and even the best preparations would be without a clue.

This was something that no one wanted to see.

Of course, they had already thought about this issue in their hearts, but they just hadn't discovered it yet; now, it seemed that the black hole was becoming more and more unpredictable.

In the future, the challenges they would face would be even more dangerous and onerous.