I don’t know what it is about this series, there is nothing I can think of in its storyline or characters that explains it, but each and every one of these books has been so engaging that I cannot stop reading them. Even when it is already 1am and I have to get up at 6:30am, I cannot convince myself that putting the book down and picking it back up later is an option. I wish I could figure out why—they’re great books, but I can’t quite pinpoint why I get so sucked into them!