^I've read up to seven, and I think I had to read other books, then I forgot what was going on and so I haven't read any more. Maybe it was six..I dunno, I keep meaning to read them, but there's others in line. They're good books though if you like vampires. Shoot, who doesn't? XD
I forget if anyone's mentioned Cornelia Funke, the author of Inkspell. I'm currently reading The Dragon Rider. Her style is rather fun and she writes a lot of fantasy.