Pure (Covenant, #2) - Jennifer L. Armentrout http://divainpyjamas.blogspot.com.au/

Pure is explosive, emotional and edgy. Alex Andros is a kick ass heroine. She's strong and isn't afraid to stand up for what she believes in. She is irrational though and that can be her downfall, and hurt those around her. Well written. It's brilliant how the back story of the covenants, pure and half bloods and gods are woven throughout each book, it only tells you what you need to know at that particular point, so there are no long drawn out lectures. A step up from Half Blood by far. Itching to start Deity.