Darkfever is about a young woman named Mac who just recently lost her sister. Her sister was murdered in Dublin, and the case was closed very quickly without being solved. So Mac takes off to Dublin to try to help find the killer. What she finds will forever change her life.
She finds a whole new world she never knew about, and creatures called the Fae. She now is in danger as well, but she's not going to give up trying to figure out who killed her sister, and why her sister wanted her to find a rare Fae book.
Along the way Mac meets many new enemies, and maybe one could be friend/enemy. And she learns things about her life she never even dreamed could be possible.
Overall the book was good. It has awesome characters, great plot, and wonderful writing. The only thing that bothered me was sometimes the heroine was extremely whinny. Other than that I enjoyed this book a lot, and I can not wait to read more.