The ending twist of City Of Bones - no spoilers

I stayed up late reading in bed this weekend and I finished City Of Bones. I couldn't help it!

Question for you, when you get to the end: What did you think about the twist?

It was definitely startling. I didn't see it coming; I am not ashamed to admit. It definitely "thickened" the plot up nicely and gave you a reason to pick up Book 2.

However, the twist was a little disturbing. Much of the book was spent in building up a certain "tension"...until the end, when it's sort of yanked out from under you.

As a writer, I have to appreciate that Clare has constructed a very clever plot with a cliffhanger that you cannot disregard. As a reader, I'm not so sure that I have accepted the ending twist yet, and I'm mostly reading on in the hopes that the twist will unravel again. If you've read it, you know what I mean.

So you might say that Clare is now in danger of losing my interest... unless she can somehow validate the tension of the first book. Really soon. I've already started book 2, and... I'm waiting.