Audiobooks and iOS7

I've looked for the answer and have tried everything suggested and cannot get this to work. I just bought an audiobook on iTunes. On iTunes I told it to sync this audiobook to my iphone 4s running iOS7. I sync my phone...and it doesn't show up. Here are things I've tried:

1. opened Music on my phone. Clicked on "more". No audiobooks option

2. Added the book to a playlist and made that playlist sync to my iphone. The playlist doesn't sync

3. Added the audiobook to a playlist that is already on my iphone. Synced again. The audiobook doesn't sync.

4. Re-booted phone. No success

Even when I sync my phone, it says on the little bar at the bottom that there is an audiobook on my phone...I just can't find it anywhere. Even when I search my entire phone for the book it doesn't show up.

Please help! I have a 6 hr drive this afternoon. Thanks in advance.