The Enigma of Arrival by V.S. Naipaul
The Tenth Circle by Jodi Picoult
I had to read EoA for a class a few weeks ago and thought that it just might overtake TC (another for-class read, though from years ago) for my all-time least favorite book, but I think TC still edges it both for one really cheesy line about demons or nightmares or whatever to be found 'at the bottom of a bottle' and for failing so spectacularly in trying to depict contemporary teenage culture. For example, this sentence actually happens and is not a joke:
"Because the skivviest thing you can do is be disloyal to someone. Macbeth killed his own king, man. That would be like Eminem taking down Dr. Dre."
On the other hand, this sentence actually happens and is not a joke in EoA:
"The handwriting spoke of a woman absolutely at peace, sexually fulfilled, without anxiety."
An unknown woman's handwriting on a bill told ya all that, did it?
Spare me.