Many mixed feelings were experienced. It was nice to be back in Mac's POV, but I missed Dani. Also, many things are going on at once in this book. Dani, does make her appearance after disappearing into one of the silvers, but lets just say she is...different. 
 The majority of the gang also make an appearance. Because Mac is (view spoiler)[ invisible for part of the book thanks to the Sinsar Dubh and it's unpredictableness (hide spoiler)] she eavesdrops on many of the mysterious characters in this book, giving us insight into their pasts and secrets, so that was interesting. Then there is that ending though...serious cliff hanger!