Well, I'm guessing you're on about Burned, right? The one after Tempted...well, if you are then it comes out on the 6th of May. :)

yep, burned comes out in may woot! i cant wait lol. a new book in the series usually comes oout every 6 months, or twice a year. and i checked on wikepedia and it gives titles for like 5 other books in the series. im not sure if all the titles given are official but we will have to ssee right?
http://en.wikipedia.org/wiki/House_of_night