The vampires want it. The demons want it, too. And someone is willing to kill Val for it.

Val and Fang have to find the powerful Encyclopedia Magicka before either of San Antonio's warring underworld factions locate it or the consequences will be deadly for the entire city. As usual, Val's vampire enemies (they still call her The Slayer) want her dead. Even some of her fellow demons may be less than trustworthy, since they'd like to grab the legendary book of spells before she does. Val has a personal claim to the Encyclopedia--her demon father left it to her when he died--but someone...

Praise for the Demon Underground series:

"Love, betrayal, vampires, and a mystery. How much better can it get than that?" -That Teen Can Blog

..".fast paced, exciting storylines...The ending took me by surprise; I can't wait for the fourth book to come out " -C.J. Harris, Vampire Librarian

..".big, shocking and intense." -Lara Taylor, Fresh Fiction

Val Shapiro has a secret she's desperate to keep-she's lost her slayer powers.

As the new guardian of the Encyclopedia Magicka, Val expected the books to give her powers to replace those that disappeared after she lost her...

Her loyalties will be tested.
" The series is] an absolute joy to read I laughed out loud. Repeatedly. Bite Me, Try Me, Fang Me." - @ Books With Bite
What's a vampire slayer to do when San Antonio's vampire leader goes missing and rogue vampires are suddenly on the rise? Find him and bring him back-no matter what the cost-before the vacuum of power pits vampire against vampire in a deadly showdown for supremacy . . . with her boyfriend Austin's immortal life at stake.
When she discovers that her ex, Shade, may have been "accidentally" responsible, Val Shapiro's problems take on...