This was NOT a pleasant read. 
 The beginning chapter got me almost hopeful. That unraveled quickly. 
 Skirting the fact that I dislike the characters of Shay & Calla, but mostly shay, I will get to the heart of why I thought this book was terrible. Neither shay nor Ren play too big of a part in this book. 
 The main plot for this book is the searchers attempting to sway the guardians into starting a war against the keepers. We get very little of this. To sum up it's a history lesson & a rescue. Woooow. 
 FU's of epic proportions & what bugged me the most: 
 None of the earthshattering reveals are actually earthshattering. Go fig? They are all incredibly obvious with very little sell aspect to them. 
 ( (view spoiler)[ I'm sure readers are taken aback that they found out the keepers are lying bastards who are secretly evil & lying to the guardians. I'm not. The guardians are enslaved. What did you expect. (hide spoiler)] 
 ( Calla & her new searcher buddies attempts to contact her pack mates (now swayed to fight with them by this time). Now she assumes that the keepers are not smart enough to see that one coming. 
 Not once does it cross her tiny pea brain that her betrayal of leaving the pack (& running away with shay) could fall badly on her pack family. What. Is. Wrong. With. Your. Brain. 
 I could see them ignoring it if she was a low level wolf, but as an alpha. You suppose to have sway girl! Duh! This snufu gets a searcher killed. Hmm. Who do they blame? It must be a spy. Huh? 
 ( Another big one was (view spoiler)[Ansel. He gets his wolf ripped out and whines like a little girl that he wants it back. It's obvious that he would bargain his soul, or what's left after his wolf is removed, to retrieve it. Oh, what a slip. He did. Author tries to convince the reader that he is set loose with all the information he knows. The information leads the searchers right to all of her pack mates & they don't even go in assuming it is a trap. (hide spoiler)] 
 ( When Calla & the other searchers arrive to rescue her pack mates, who have been tortured, raped and all around messed up at this point, they have a moral discussion about whether the searchers are evil or not. Yeah. Somebody torturing me I don't care if the yoyo who did it sets me free. I am not gonna stand around and ask stupid questions before they even release me. Later yes. After I've gotten what I wanted from you. 
 ( (view spoiler)[The Ren thing was no surprise even when Monroe was recounting the story of ren's mother. (hide spoiler)]