Nice Doorstop

I finished reading Stephen King's UNDER THE DOME last week. At more than 1000 pages, I was engrossed in the story, with the same cast of characters, for quite some time. Luckily, I enjoyed it.

But, after all that time invested, I wanted a really, really good ending. Unfortunately, I thought it fell a little short.

Without trying to give anything away, the book opens with a highly implausible event. So I guess I wasn't that surprised to have an ending which bordered on a deus et machina. Although to be fair, after the precipitating event, I'm not sure how he could have wrapped things up without pulling something out of his nether regions.

Anyway, like I said, I enjoyed the book. But I would have enjoyed it more with a different ending.

What book have you read where the ending left you a little flat? Did that stop you from reading that author's next book?