Demon heart

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The demon heart is discussed by Finn and Jake in the episode "Wizard." They are wondering what a demon heart looks and tastes like when Reaper interrupts their thoughts and offers them free Wizard Powers. At the end of the same episode Reaper comes once more and offers a demon heart (a strange organ covered in various mouth-like appendages and spikes) to Finn and Jake for free. It is presumably a real demon's heart since it looks similar to the one of an actual demon.

Appearance

The Demon Heart appears to be similar to a human heart with its normal colorways, but it is four times bigger and has multiple mouths and spikes on it.

Trivia

This item was seen again later in "Issue 2".
Marceline's heart is revealed to have a very similar appearance at the end of the miniseries Stakes.

Gallery

v • d • e Objects

Recurring	Apple pie • Ax bass • Baby Whoozlefut & the Wuttlebugs • Ble • Bug milk • Candy cane shotgun • Cosmic gauntlet • Crystal Gem Apple • Demon Blood Sword • Finn Cake • Finn Sword • Finn's crossbows • Finn's flute • Finn's hat • Finn's pack • Finn's sweaters • Finn's swords • Fionna and Cake • Fionna's swords • Gauntlet dock • Gems of Power • Grass Sword • Hambo • Heat Signature • Holo technology • Ice King's computer • Ice King's crown • Ice King's instruments • Lumpy Space Princess's phone • Jake's pack • Jake's phone • Nightosphere amulet • Nightosphere portal • Princess Bubblegum's crown • Prismo's Homemade Artisanal Pickles • Protective jewelry • Runic code • Sea Lard • Sound sword • Super Porp • Taser • The Enchiridion • The Gauntlet of the Hero • Universal translator device • Video camera • Viola

Season 1	Adventure Master • Boomerang bottle • Bug Battle • Caturday Surprise • Conversation Parade • Crotch catapult • Crystal Eye • Decorpsinator serum • Demon heart • Fun tray • Ghost pouch • Hero vision monitor • Imagination machine • Lumps antidote • Magic Nail • Nothung • Obnoxygen • Power rings • Stone-skin potion • Wizard robe

Season 2	Anti-gravity tote chamber • Armor of Zeldron • Bomba • Book of Royal Rules • Bubble creator • Finn's phone • Glasses of Nerdicon • Honey energy drink • Ice King's diary • Love Kaboom • Lute suit • Magic wand • Marceline's phone • Mystic pods • Ninjas of the Ice: The Art of Fridjitzu • Paralyzing potion • Princess plant • Prism-gram • Royal tart • The Ooo Review • Throwing knives • Upturnoverdrive • Walkman • Wish orbs

Season 3	Candy Zombie flesh • Cherry Blossom Wand • Dulcimer • Everything burrito • Fight King's sword • Fire Guitar • Flakies • Freezing Potion A • Ice armor • Ice King's tapes • Instant bath serum • Jake's baby blanket • Liquid pyrotechnics • Marceline's journal • Me-Mow's assassin gear • Music box • Prank machine • Princess Bubblegum's rock t-shirt • Rainicornicopia • Softy Cheese • Spirit sparkles • Unfreezing Potion A

Season 4	Animal-shaped chicken nuggets • Bacon Pancakes • Ball Blam Burglerber • Banana • Bestiarium Vocabulum • Candy helicopter • Card Wars • Electrode gun • Emerald Princess' crown • Flame Princess' scented candles • Glowing sword • Grob Gob Glob Grod's device • Heart monitor • I Wrote a Book • Lamb relic • Lantern • Martian transporter • Medallion of Brogends • Milk suit • Mind Games • Perfect sandwich • Princess Bubblegum's diary • Princess Bubblegum's electric piano • Robo suits • Tea robot • Wand of Dispersement

Season 5	Airplanes Taking Off • Baby Ballet • Baker's Shard • Basic Mortality • Battle moon • Beauty Beard • Blimby's "WHO GOTS DA ABC'S" • Candy seed • Clambulance • Cold spell • Demonic Wishing Eye • Donuts Always Die • Dream Journal of a Boring Man, Vol. 12 • Fionna and Cake Omnibus • Googoomamameter • Gunter's keyboard • Jake's most delicious sandwich • Kill Me a Candy • Lemonsweets • Little People • Mom's manual • Mushroom Bomb • Nursery Rhymes Book • Soul stone • Special occasion phone • Spoon of Prosperity • The Pillownomicon • Yeeargh!

Season 6	Booboo Sousa • Hot Daniel • Macaroni salad • Powerometer • Twinkling Eye Potion

Season 7	Gumbald's outside clock • Peppermint Butler's Stakes Collection • Special Sentient Sandwich • The Boat • The Maid

Season 8	Crystal Mergence of Destruction • Breadstick wand • H.M.S Sugar Spit • Small sword

Season 10	Night Sword • Dum Dum Juice

Shorts	Magic wand

Comic	Ancient Enchanted Oven • Bag of Holding • Fionna & Cake Meet Finn & Jake • Heated salt crystal • Super Guts Punch 3

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Appearance

Trivia

Gallery