I'm not sure if anyone else here is reading the series (Beautiful Creatures, Beautiful Darkness), but I've been anxiously awaiting the 3rd book, Beautiful Chaos, which is due out in October. The other day I logged into Goodreads where I follow Kami Garcia, one of the authors of the book, and in her feed there was info about something called Dream Dark, which is a short story, and apparently considered to be Caster Chronicles 2.5. I downloaded to my Kindle for 1.99, and it has the first 5 chapters of Beautiful Chaos also. Just thought I'd share, since I had no idea it was available.

http://www.goodreads.com/book/show/11568316-dream-dark

http://www.amazon.com/Dream-Dark-Bea.../dp/B0054LDAZ2