What Sarah Dessen book should i read next?

I liked "This Lullaby". It was a really different story, do you know what I mean? I thought that it would be just another novel written for teenage girls, but it wasn't. It was very touching, and the plot seemed completely unique to me. However, my favorite book from Sarah Dessen, by far, is "Dreamland". It's a lot darker than what she normally writes, though.