We recently discovered a new planet in our solar system with a 25,000 year orbit. Any Sci-Fi books that have this premise where the planet is close to Earth and we find all manner of scientific wonder and horror on said planet or due to its vicinity to Earth?

Or maybe Sci-Fi books that explore strange happenings in history with a 25,000 year cycle, and now in modern times have discovered that these things have occurred when the planet is close to Earth in its orbit?