You've been looking at the "second sun", Nibiru, your entire life. It's called the Moon.
I'm well aware of that theory. And you're not understanding. The "prophecies" of Nibiru are far older than you can imagine. The "star" that goes and comes back is our current day moon.
How old is the original prophecy?
Who did it come from?
Where did "they" come from?
When did the prophecy come true?