Today is the two-parter or really a whole episode of Adventure Time "Mortal Folly" and "Mortal Recoil".Talked in the shadows on the net and only featured for a few seconds in the episode "His Hero" the Lich King is a very menancing figure in the Land of Ooo. Supposedly, the most powerful creature in Ooo. Which puts him past Marceline's Dad the Lord of Evil, which makes him nearly unstoppable. Voiced by Ron Pearlman.
The episode is suppose to be much darker than usual as the preview show Princess Bubblegum apparently almost dying and it's suppose to have some more fights than usual.
