Second Esdras.
While First Esdras is basically an alternate version of Ezra and Nehemiah, Second Esdras is an entirely different animal (or rather, at least two entirely different animals; see the Wikipedia article). The first two chapters are basically a supersessionist (and rather antisemitic) tract forming a late addition, while the main body is a series of apocalyptic visions that make the most psychedelic parts of Daniel and Revelation (and for that matter, the "Stargate" sequence of Kubrick's 2001) seem downright tame.
While First Esdras is basically an alternate version of Ezra and Nehemiah, Second Esdras is an entirely different animal (or rather, at least two entirely different animals; see the Wikipedia article). The first two chapters are basically a supersessionist (and rather antisemitic) tract forming a late addition, while the main body is a series of apocalyptic visions that make the most psychedelic parts of Daniel and Revelation (and for that matter, the "Stargate" sequence of Kubrick's 2001) seem downright tame.