Don't Forget to Vote (Best Single Story Arc Series)

Image Description: A map of Middle Earth

What is the best single story arc in a multi book series? 

We're already almost half way through March already (oh my god!) and it's just about time to start the nomination process for our April poll, but first I want to remind everyone to vote in March's poll.

The poll description can be found here.

The poll itself is down on the left hand side at the bottom.

Please don't forget that our poll program will only track your IP address for one week, so since I can't stop shenanigans, I'm asking for as much of it as possible. Vote early. Vote often.