"Sydney's blood is special. That's because she's 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. But the last encounter Sydney had with vampires got her in deep trouble with the other alchemists. And now with her allegiances in question, her future is on the line. When Sydney is torn from her bed in the middle of the night, at first she...

After making a life-changing decision, Sydney Sage, an Alchemist who serves to bridge the worlds of humans and vampires, must tread a careful path as she harnesses her profound magical ability to undermine the way of life she was raised to defend.

As Marcus Finch tries to convince her to rebel against the people who raised her, Sydney Sage, an alchemist who serves to bridge the worlds of humans and vampires, searches for an evil magic user targeting powerful young witches.