The Indigo Spell by Richelle Mead

Sydney Sage is an Alchemist, one of a group of humans who dabble in magic and serve to bridge the worlds of humans and vampires. They protect vampire secrets--and human lives."
In the aftermath of a forbidden moment that rocked Sydney to her core, she finds herself struggling to draw the line between her Alchemist teachings and what her heart is urging her to do. Then she meets alluring, rebellious Marcus Finch--a former Alchemist who escaped against all odds, and is now on the run. Marcus wants to teach Sydney the secrets he claims the Alchemists are hiding from her. But as he pushes her to rebel against the people who raised her, Sydney finds that breaking free is harder than she thought. There is an old and mysterious magic rooted deeply within her. And as she searches for an evil magic user targeting powerful young witches, she realizes that her only hope is to embrace her magical blood--or else she might be next. 

-- Goodreads.com description --

Warning this review might contain spoilers for the Vampire Academy and Bloodlines series!

The third book in the Bloodlines series is the one I enjoyed the most up until this point. It contains a lot more romance. I liked the action and the mysteries a lot more too. I just couldn't put The Indigo Spell down! I loved the fact that Sydney is beginning to be more of an action heroine as well. Although, I absolutely love her as a smart heroine. Now she is both and it's awesome!

I gave this book 4 out of 5 stars! I enjoyed it immensely! If you are interested in reading this series or the Vampire Academy series don't hesitate! You are in for an action-packed and romantic time!