MaryJanice Davidson 
Undead And Unreturnable 
Number 4 in series

Just when Betsy Taylor thinks she’s adjusted to her after-life as a vampire queen, fate intervenes. It’s bad enough having to view your own gravestone but now Betsy’s even started seeing dead people — an assortment of demanding ghosts who are determined to make her do their bidding. Betsy also has some personal stuff to deal with — not least of which is planning her Spring — and Midnight — wedding to Sinclair. Meanwhile her half-sister is starting to display signs of inheriting her real mother’s temper. And when your mother’s the devil, that’s cause for concern