I have so many things to say about this book, I don't even know where to start. Ok, so the first time, I heard about this book, I was so excited, it sounded really good and different from what I usually read. When I got it and read "for teens"..I was surprised, for some reasons I thought it was gonna be for older people. Anyway, I still wanted to read it because I was still intrigued. 
 The beginning was not what I expected to be, in my mind this book was going to be really dark (that's the reason I shouldn't be allowed to be excited about a book, because then I have very high expectations). The characters are in high school, I actually liked them: Delilah is not fearless but is really strong, and brave. She likes horror stuff and always liked Gavin who lives in a really weird house. They start dating very quickly and he introduced his house, a house that is "alived". And you found yourself in a very disney atmosphere, I thought it was cute (the house is nice, helps and loves Gavin...) but I couldn't stop thinking of Beauty and The Beast (I couldn't help myself). And well at that point, I really really wanted something scary. 
 And then, Delilah found herself alone in the house. That's when the book really got interesting, and scary. Here's the first reason: the spiders, just the idea of having spiders crawling up a wall gives me nightmares. The book is really easy to picture because it's really detailed and you can read sentences like these ones: 
 "The pattern looked like spiders. Only a few at first, but then more and more. Their legs were thick, covered in coarse hairs" 
 "Spindly legs carried hundreds of black bodies skittering across the wall, so many that she could hear them" 
 "She tried to work out how Gavin could have known about the spiders, right down to the thick, hairy legs, the stripe of red along their round, brown backs." 
 This is just a nightmare for me. (let's not forget the chapter with the roaches) 
 And from that chapter, it got scary (but not too scary), and that's when I got really hooked, I wanted to know everything: What was in the house? Why it was that way? 
 I'm not gonna spoiled the end, but I really enjoyed this book, the story made sense, it was really well written, a very good book in my opinion. Also, I loved the fact that it was Delilah who saved everyone, and not the guy. It truly showed how strong and brave she is (I would have run away the minute the spiders appeared on the wall) 
 So I would gladly read it again, and I would recommend it to anyone.