The Watcher
by Jeanne C. Stein, 2007
Series: The Anna Strong Chronicles

"Newly-made vampire Anna has become a Watcher-one of the supernatural world's enforcers- even as she fights to control her vampiric rage. When a series of very dangerous events threatens to draw out her unstable powers, her Watcher mentor sends her away for her own safety. But if there's one thing Anna has always been able to find, it's trouble." (From Amazon.com)