The third season of Heroes comes to an end tonight.

Will Sylar kill Nathan, as various rumors have suggested? Or might the show's main bad guy actually be the major death various spoiler columns have hinted at?

We'll recap the episode in full soon after it airs. In the meantime, click on the following photos from "An Invisible Thread" for an early peak at the finale...

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.