Most Neglected Eschatological Book in the Bible (Not Revelation)

The book of Revelation is certainly neglected in the church and when it is paid attention it is often misinterpreted. However, I would contend that the most neglected eschatological book in the Bible is found in the Old Testament, Ecclesiastes.

Here are a few helpful articles by some insightful interpreters on a book that most people do not really understand:

http://paulhelmsdeep.blogspot.com/2013/12/the-message-of-ecclesiastes-living.html

http://paulhelmsdeep.blogspot.com/2014/02/ecclesiastes-and-new-testament.html

https://s3.amazonaws.com/tgc-documents/journal-issues/19.3_Clemens.pdf

http://triablogue.blogspot.com/2014/01/biblical-fatalism.html

http://triablogue.blogspot.com/2014/04/solomonic-authorship-of-ecclesiastes.html

http://triablogue.blogspot.com/2014/04/the-gathering-darkness.html