Very good book 2. 
 With the arrival of the Wild Hunt in Avalon, life has gotten even more complicated for Dana, a rare Faeriewalker (half-human, half-fae and can bring magic into the mortal world or tech into fae). The Erlking wants something from her and that has her Fae father even more protective than usual. Dana was living in an underground safehouse and guarded 24/7 BEFORE, now it's getting worse. 
 Some angsty romantic bits, but I thought they were done well (in other books, it can be like screeching fingernails on a chalkboard, but not here). 
 I like the characters and how complicated everything becomes. Dana keeps a lot of secrets, and she makes mistakes but then has to pay for them, but given she can barely trust anyone and that she practically raised herself, keeping secrets seems like a good plan. 
 There isn't any sex in this book, but there is a lot of emphasis on it (to explain why its more than just teenage hormones would be spoilery). There is violence and a scene of attempted rape.