C3075 It Was like a Ghost

Because it was dark, they couldn't see anything, and they could only hear the sound of thunder, but it was impossible, because there was a clear sky above them, and the moon and stars were scarce. There were no clouds at all, so how could there be thunder?

If it was not thunder, then there was only one possibility left. This was a plane, and it was the unique roar of the Jet. However