Borrowed from the Nomadic Delirium Press blog:
The Ephemeris Omnibus is the featured e-book for July 10th. You can get it for 25% off at Smashwords by going to https://www.smashwords.com/books/view/306292.
Ephemeris Omnibus 2013 features the Ephemeris core rulebook (with some
rule changes, including mutli-classing), and all of the rule supplements
that have been released as of the end of 2012. All of the species and
class supplements have been blended into the core rulebook to create a
massive (over 200,000 words) rulebook that will allow you to play the
most extensive Ephemeris game you'd ever want to play.