Compared to the other books -- where instant-love is very strong -- I must say that Graham and Misty's story pretty much has been going on for awhile. Misty first appeared in the 4th book (Eric's story) so for me, the foreplay had basically gone for almost a year. Nothing instant about that *grin*.
Added with Graham being a very interesting character who was developed for more than just black and white anti-hero -- he started in book #3, a thorn in Eric's ass, and pretty much being a bit antagonistic -- and a new progress in the Fae-Shifter mythology, it created a quite fast-paced action-romance driven that made this book one of my favorites of the series as well.
Graham and Misty were GREAT. I already loved Graham for being a bit shade of grey. Graham ended up showing his more heroic feature in this book, not just plain antagonistic, but he still yelled a lot *haha*. I loved his favorite quote, "Suck on it!". Misty was the right strong heroine for him. She didn't back down from challenge. When she must helped Graham fight the fae, oh, she showed her sass and smart move all right. I loved her determination. Plus she now master spells with the help of her knowledge of flowers!! That was so cool!
I really enjoyed the take on the Fae myth this time -- usually when the story took on the Fae element (like in book #2) it became too detached for me to enjoy. But this time, it worked really well -- the threat to the Shifters race, the key behind their Collar magic, and why it seemed that the Fae are starting to make their moves, it was fun and intriguing!! I loved the 'additional' players as well, like Ben (the goblin) and true identity of the orphan cubs Matt and Kyle (they're Shifter Guard!).
So the last two books of this series are good ... definitely will be there for the next sequel.