It's online.
Here's what I found about it:
www.conservapedia.com
The Greek form of this book in the Septuagint does not have the first two chapters of 2 Esdras which appear in the Latin version of the book. For this reason most scholars hold Chapters 1 and 2 of the Latin and English versions to be of Christian origin (probably second century), because they assert God's rejection of the Jews and speak of the Messiah in Christian terms: they describe the rejection of the Jews in favor of the Christians in words resembling Christian theological language of the second and third centuries.
This section also contains a vision of the Messiah as the Son of God who ministers to the martyred saints in heaven:
Because of their apparently Christian character, many scholars and students of the Bible regard these first two chapters as late second or third century Christian additions to the work.