** spoiler alert ** 
 I try not to obsessively and impatiently await the next book in a series I like. It's too often turned out badly for me...Lothaire (http://www.goodreads.com/review/show/...), Archangel's Blade (http://www.goodreads.com/review/show/...) Mockingjay (http://www.goodreads.com/review/show/...). But Heart of Obsidian had real promise. I was psyched about the mystery, certain I knew who the main characters were. THANKFULLY, this time, I wasn't disappointed. 
 I've been disenchanted with the last few installments of the Psy-Changeling series. Not enough happening. Characters that weren't that integral to the overall storyline. When I don't care if the main characters live or die, I don't care about the story at all. But Kaleb was great. Judd has and will always be my favorite hero in the series. I love the Silent man who smiles only with that one person. We got that with Kaleb and Sahara. 
 The ending was interesting too. The fall of Silence. Seems like the only logical place for the series to go, what with all these supposed to be Silent Psy defecting and breaking their Silence all the time in 12 books. Kind of reminds me of what is happening in the Mercy Thompson series. 
 The only things I didn't like were silly little things. I nit-pick. I'm a nit-picker. I'm pretty sure the word OBSIDIAN appeared 100 times in the text. That sort of repetition bugs me. Like how many times the cool metal of her charm bracelet touching his skin. Too many times. And did Sahara really seem "broken" to anyone? I thought she recovered quite well...quite quickly. And entirely intact. At no point was she broken at all. Was that the point? 
 And, okay, the slow unfolding of their childhood friendship and of Sahara's ability...well, to me read as less suspenseful and more just frustrating. Would the story have been any less interesting if maybe at the halfway point we'd known SOMETHING? 
 Anyway, it was good. Not 5 star good. But good. About times something really big happened! 
 I will not patiently and not-obsessively await the 13th in the series.