They are really good books, and I really think あなた should read them. It's not like Twilight, which is もっと見る for Pre-Teens and under I suppose. This one is a bit もっと見る Young-Adult, with a bit of explicit language, and drama being it's main genre instead of romance. It has stuff like alcohol, and sex, though the scenes aren't all that explicit.
I myself like it もっと見る then Twilight, but that's もっと見る because it's my type of book. And I'm thirteen, so it's really up to あなた to decide.
あなた could read the first chapter on the Main House of Night Webpage and see how あなた like it;
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