Lena was supposed to claim herself for Dark or Light on her 16th birthday, but she didn't. Now the moons have been thrown off course. Lena seems to be drifting away from Ethan, her mortal boyfriend. Ethan thinks it's because Lena is mourning her Uncle Macon's death, but it might be something more. Could Lena be going Dark? Ethan refuses to accept that the girl he loves might be leaving him forever. He will do everything he can to save her.My first problem was I hadn't read Beautiful Creatures, the first in the series, so I spent a good part of this book confused since I had no background and I didn't know what had happened at Lena's 16th birthday and the history of the Casters (although I got plenty of that over the course of the book). This is not a series that is easy to read out of order. Definitely start with the first one.