I'm sort of at a loss for this book. I may end up changing my mind later about the rating. The stars are sort of arbitrary anyway. (For reference- 3 stars is neutral ground for me, while GoodReads considers 3 stars to mean you liked it. Sort of like that annoying middle option on surveys "Neither agree or disagree".) UPDATE: Giving the book 4 stars. The more I look back on it the more fond I am of it. This is probably faulty logic. But if all you can remember was that you really enjoyed it, it probably deserves more than three stars. Critiques made below are still totally valid. 
 Everything about this book should have been a home run. Myfanwy (Miff-uh-nee) Thomas is pretty awesome in a supernatural Stephanie Plum sort of way. I loved her, and I'm sorely disappointed that she doesn't seem to be the narrator of the sequel. The concept felt fresh, and the powers and the villains and the things that were happening were things that maybe only happen in your wildest dreams and probably not even there. Gestalt's power of one mind occupying four bodies was both awe inspiring and mind boggling. There was enough dry sarcastic humor to go around. 
 Seriously- there is pretty much nothing about this book I shouldn't have loved. I ripped through it quickly enough and found it hard to put down, yet here I sit, having just finished it, not glowing. Not thinking about how many friends or family members I could convince to read this and share in my joy. Not jumping with excitement to dive into the next book. 
 So what went wrong? The problem could be precisely that I've read too much Janet Evanovich in my life and though I loved Myfanwy, she didn't quite feel "new" as a character to me. It could be that O'Malley doesn't write action with any sense of excitement (to be fair, he has some stiff competition with the last two books I've read, Maas and Cornwell do action better than most; this could also be due in part to Myfanwy's blase attitude, which totally fits the tone of the book but didn't exactly make for "oh shit oh shit oh shit" moments). 
 Mostly I think it is due to the pacing of the book. O'Malley created a false sense of suspense by interrupting bouts of action with an info-dumping letter from pre-amnesia Myfanwy. It does keep you turning the page, but it also interrupts all of the excitement to share with you a sort of bland memory of a random Christmas party right before amnesia hits. Or a random meeting. Or a random magical happening (referred to in the book as "manifestations"). Mind you, all these memories are not pointless, and are tied together nicely in the end, but they were so poorly timed that I read through them quickly going, "yeah yeah, but does she die?!" and inadvertently missed many of the clues leading up to the conclusion that made perfect sense and came out of left field all at once. 
 That isn't to say I didn't enjoy the letters. Because I did. (The one about the oracular duck was absolute gold.) I just wish they weren't placed smack in the middle of Myfanwy being devoured by a fleshy tentacled cube in a police station in Reading. 
 In the beginning, Myfanwy is reading through the letters in logical order. The first one is pulled from her pocket. The second one, I think, is also pulled from her pocket and neatly labeled 2. After the third letter, they are just randomly thrown in with no real incentive for Myfanwy to be reading them at exactly that moment. I think my enjoyment of this book would have been increased ten fold if the letters had simply been placed in different chapters of the book. Like, at the end of a long day of fighting glowing purple mold, Myfanwy curls up with the non-oracular rabbit Wolfgang and reads a few letters from her old self. Or on her coffee break at work. Or in the back of the limo. Doing this would have required no extra effort on the part of the author, and it would have made for a much more cohesive story. 
 I think that O'Malley has an imagination to be admired, and I'm excited to see where he could possibly take the series. I'm guessing since Myfanwy is not the narrator of the next book, it will also not contain regularly scheduled interruptions in the program, so I'll probably give it a go and hope for the best.