Thoughts on Sequels.....

I read The City of Ember by Jeanne DuPrau a few years ago and loved it. It is now one of my favorite children's books. So when I found out there was a sequel, I picked it up at the bookstore to take a look, only to put it down again after reading the first chapter because it was so darn BORING. (I only recently read the whole thing and the rest of the book did not improve much.)

My dear readers, have you ever, after reading an awesome book and eagerly awaiting/immediately seizing the sequel, been disappointed that it was not as good as the original? I would have to say that my biggest pet peeve (besides lame books in general) is lame sequels to really good books. I feel that it's almost insulting to the original book. 

So, my question is, has this ever happened to you?

Tay