SHe was very surprised by this incident.  He thought to himself that if I told this story to everyone, I would be a celebrity, but his conscience wouldn't allow that.  He was acquainted with those two aliens.  They told him about things on the rocky planet.  Headquarters had told them to return to Earth, so he had to say goodbye to them.  They gave him many gifts and specimens they had.  He swore an oath not to tell anyone about this.  In the future, people will discover aliens instead of now because the old man didn't tell anyone