From Dead to Worse (Sookie Stackhouse #8) by Charlaine Harris

The supernatural community in Bon Temps, Louisiana is reeling from two hard blows: the natural disaster of Hurrican Katrina, and the manmade horror of the explosion at the vampire summit in the up-north city of Rhodes. Sookie Stackhouse is safe but dazed, but too many vampires - some friends, some not - were killed or injured, and her were-tiger boyfriend Quinn is among the missing.

It's clear that things are changing, whether the weres and vamps like it or not. And Sookie, Friend to the Pack and blood-bound to the leader of the local vampire community, is caught up in those changes. She's about to find herself facing danger and death and, not for the first time, betrayed by someone she loves. And when the fur has finished flying and the cold blood has stopped flowing, Sookie's world will be forever altered . . .