The last three Kings of Judah in quick succession. Their fate is already controlled by forces larger than themselves. Egypt and Babylon plot to put in puppet Kings until Babylon destroys Jerusalem and disperses the people into exile.
It’s economically told. We skip the misery and death that the siege involved. In a way it’s typically upbeat.
Being written post- exile, the writer is able to quickly sketch in the return from exile after 70 years. So it ends much less bleakly than Kings and Jeremiah, which have just the barest thread of hope at the end.
But all three accounts have strongly in common that it is God’s judgement, Babylon is simply his means of judgement. It’s God’s doing, because they rebelled against him and rejected his prophets.