“It appears that my attempts to perfect my decorpsinator serum have once again ended in failure... And we're talking TURBO FAILURE here. I knocked the serum over and it went all over the place, meaning...
Yep, that's right. Candy zombies! I really need to stop conducting my experiment in the graveyard... But first things first, you've gotta help me get back to the castle so I can make the cure for my peeps! Let's go!”
— Princess Bubblegum upon starting the quest.
Finishing the Quest
“We made it! Now I must hasten to the lab and quickly concoct the zombie antidote... I know it by heart now, so it shouldn't take me long.