Talk:Twilight's Kingdom - Part 2/@comment-4066758-20140512162510/@comment-26973802-20140512173721

And maybe they'll actually destroy him this time. (throwing away my "eternal tarnation" theory on Tirek since Cerberus seemed to feel the need to stand guard over him to prevent another escape, there's probably a lower level of Tartarus below where Chrysalis and Sombra are that they cannot escape being dead and all, I think Tirek's immortal like Garlic Jr. and that's the only reason the rainbow didn't kill him)

Speaking of Cerberus, if he's guarding Tirek who's guarding the gates of Tartarus?