You can read the Goodreads summary here.
Demonglass picks up a few months after Hex Hall ended. Sophie wants to go through the Removal, but her father arrives and insists that she come with him to England for the summer to think it over. She takes her best friend, Jenna, with her as well as Cal, the school groundskeeper and super-healer. Archer shows up, too.
*swoon* Archer and Sophie are so cute. Their chemistry is so real, which is why I loved Hex Hall so much, and also why I loved Demonglass. Of course, there was a teeny tiny bit of a love triangle starting in this novel and I'm excited to see how that works out in the end. Some might not agree with me, but I could honestly see it going either way. Things got a little more complicated in Sophie's world this summer and it made for a great plot. As usual, I loved Sophie's sarcastic wit, but she also showed a bit of her softer side in this book.
I can't wait for Spell Bound! Demonglass ended on some big cliffhangers. If you haven't started this series yet, you're seriously missing out. I think you'll especially enjoy it if you were a fan of Twilight. They aren't the same thing, but they have similar undertones.