At first I thought the entire premise was totally creepy. I mean, the idea of something LIVING on your BRAIN. I almost stopped after the insertion -- in fact, I almost didn't read the entire book b/c of it.
But, in typical SM fashion, the characters drew me in with their voices, strength and overall dynamism.
I loved the fact that there was a resistance at all; and I loved the fact that the souls were just so nice it was nearly impossible to hate them, yet they were the enemy!
I have to say, I was a little excited for a bit of an uncomfortable ending with Wanderer sacrificing herself... but wasn't ultra surprised SM's characters didn't end up that way. She's not very Shakespearean, that one.