The undead Pool by Kim Harrison.
This past year I have set down three long standing series, basically just sick of them. I have not gotten bored or tired of this series yet and am hoping it continues to be a good fun read for me.
It is going to be 512 pages and will be released Feb 2014 from Harper Voyager.
Witch and day-walking demon Rachel Morgan has managed to save the demonic ever after from shrinking, but at a high cost. Now strange magic is attacking Cincinnati and the Hollows, causing spells to backfire or go horribly wrong, and the truce between the races, between Inderlander and human, is shattering.
Rachel must stop the occurrences before the undead vampire masters who keep the rest of the undead under control are lost and it becomes all-out supernatural war. However, the only way to do so is through the ancient elven wild magic, which carries its own perils.