You will Watch Adventure Time Season 2 Episode 25 online for free episodes with HQ / high quality. Stream cartoons Adventure Time Episode 51 The second part of a two-part episode. Princess Bubblegum is put into the hospital after accidentally being dropped into the Lich’s well of power by the Ice King. But when the spirit of The Lich possesses Bubblegum, Finn and Jake team up with the Ice King to stop him. After Bubblegum is seriously wounded and there is not enough candy bio-mass to save her, she reverts to a 13-year-old.