Adventure Time, Season 6

Magic Man:
[pumps oven] This is exciting!

Betty:
A little sad though, right?

Magic Man:
Which part?

Betty:
Your brother blowing up in space. Doesn't that mess you up?

Magic Man:
Nothing messes me up.

Betty:
I don't believe that. Like, who is Margles and why is there a picture of her on your shelf? Something there connects to who you are and your magic.

Magic Man:
Someone shines a light into my dark wizard matter. A way to unclose the circuit of magic, madness... and sadness.

Betty:
That's right! MMS runs through all magic users. I hung out with scores of them — all displaying varying degrees of magic, madness, and sadness. Studying these symptoms could lead me to their underlying cause and then I'll control the forces that hold sway over Simon.

Magic Man:
I see.

Betty:
You see what?

Magic Man:
The coconut crab who swims in your neighbor's pool at night. Maybe Simon's in there too. Who else holds their breath in there, Betty?

Betty:
All magic users swim in the loomy gloom.