WARNING: Spoilers for the final episode are unmarked.
Produced by Cartoon Network and BOOM! Studios and written by Sonny Liew (The Shadow Hero and The Art of Charlie Chan Hock Chye) and Ted Anderson (Adventure Time: Beginning of the End and My Little Pony: Friendship Is Magic (IDW)), with art by Marina Julia, Adventure Time: Season 11 takes place after the Grand Finale of the animated series. As the Great Gum War comes to a close, Finn, Jake and the entire Land of Ooo begin to pick up the pieces with new and unexpected friends.
The comic was released on October 2018 and it was originally going to consist of 12 issues. It was also accompanied by a six-part miniseries titled Adventure Time: Marcy and Simon, with Marceline and Simon as the main protagonists.
Unfortunately, while the Marcy and Simon miniseries did well-enough to complete its run, this comic ended up being cancelled due to sales not meeting Cartoon Network's expectations, ending the story with only six issues.
- Advertised Extra: While Simon shows up in several covers, he has little to no impact in the comic. This is because Ted Anderson let Marceline's voice actress Olivia Olson handle Simon in the Marcy and Simon miniseries.
- Alternate Continuity: The comic is not considered part of the official canon, according to Adam Muto. It still takes place after the finale, though.
- Alternate Timeline: Finn and Jake are brought to an alternate future where the Pup Kingdom doesn't exist, Jake and Lady's descendants aren't the dominant species, Shelby and Beth are nowhere to be seen, the Land of Ooo is still populated by people and it's more lively than the bleak future of the series, Marceline is now in charge of the Candy Kingdom, BMO's parts were used to built three robots and Bubblegum mysteriously vanished. The second issue even refers to this future as "Weird future".
- Ambiguous Situation: Anything related to Future Bubblegum is a complete mystery since Future Marceline doesn't remember anything about her thanks to her memory loss. Averted by Issue 4 when Future PB returns from a century long trip to find out what was wrong with BMO.
- Arc Villain: Future Hunson Abadeer for the first arc. He's the one that sent the memory devouring creatures to erase all of Marceline's memories in a gambit to get her to come back to the Nightosphere.
- Subverted with Malloy. While he tested Finn with the fake attacks in Humantown, he had no evil intentions towards him, his own people and the Land of Ooo in general due to his unfamiliarity within the land.
- Bittersweet Ending: Finn's trust in Malloy and the rest of the humans (except Minerva) is tainted after he realized he was being manipulated to protect Humantown from Malloy's robotic ant, due to their inexperience in a new territory. Finn leaves Humantown, frustrated and angry since he was hoping the town to be a new home for him. But on the bright side, Finn manages to build a new home with the help of his friends. And to top it all of, the comic ends with Minerva visiting Finn at his new home, singing a lullaby to help him sleep.
- In Issue 1, Simon shows Marcy the spoon he used to give her the chicken soup in "Simon and Marcy".
- Finn finds the small creatures Marceline showed to Finn and Jake in "Evicted!" while searching for their stuff in the remains of the treehouse.
- Most of the alternate covers by Julie Benbassat shows several elements from their respective seasons (Issue 1 with Season 1, Issue 2 with Season 2 and so on)
- Some of the memories Future Marceline tries to remember are scenes from "Simon and Marcy", "Go With Me", "Varmints" and "What Was Missing".
- Continuity Nod:
- The Ice Thing is shown flirting with Turtle Princess at the end of the first arc.
- Finn tells his mother the events of Elements, as well as some stuff that happened during the final season of the show and the first arc of the comic.
- Covers Always Lie: BOOM! was smart enough to fool everyone with this variant of the main cover◊ after the comic was announced before the finale and the comic's launch, hiding the fact that Simon has returned and is now part of the main cast.
- Doomed Hometown: GOLB and his creatures managed to do quite a number on the Candy Kingdom, the Ice Kingdom and obviously, Finn and Jake's treehouse.
- Dragged Off to Hell: Finn and Jake are forcefully teleported to the Nightosphere by Hunson at the end of the first issue after they realized that they were sent into the future to help Future Marceline.
- Exact Words: In the first issue, a voice, later revealed to be Future Hunson tells Finn and Jake if they want to help BMO, they must enter the portal and go to the future. Here's the thing: Hunson never referred to BMO by name, only as a "friend" to Finn and Jake. While they thought he was talking about BMO, Finn realizes he was talking about Future Marceline and her memory problems before being teleported to the Nightosphere.
- Fake Ultimate Hero: Finn and Jake celebrates saving Ooo from certain doom, but the comic quickly reminds that it was Betty that saved everyone. But to be fair, Finn managed to stop the Gum War from happening, so he's got a little credit for that.
- Foreshadowing: After Finn and Jake encounters Future Marceline, she mispronounces Jake's name as "Jack", foreshadowing her memory loss.
- The Fog of Ages: This ends up happening to Marceline in the alternate future. She's slowly losing her memories of the people she met in her life and the only way to make her remember is by collecting old objects from the past. Hunson believes that it's a curse, a serious wound or an illness. The final part of the first arc reveals that it was her robots, who are actually Nightosphere demons, that were doing this to her under Future Hunson's orders.
- Immediate Sequel: The first arc starts one day after the events of the Grand Finale.
- Interquel: The first arc takes place between GOLB's defeat and Minerva's arrival at the Land of Ooo.
- Mood Whiplash: The comic starts with a very lighthearted tone until BMO suddenly breaks down, kickstarting the plot of the first arc.
- Memory-Wiping Crew: Marceline's robots are responsible for erasing her own memories under the orders of Hunson Abadeer.
- Late-Arrival Spoiler: CN and BOOM! didn't even bother to hide that Finn and Jake survives the Grand Finale when the comic was announced. (especially Jake, whose death has been foreshadowed countless times)
- My Greatest Failure: Finn still blames himself for Fern's death after he tells his mother all about him.
- Nothing Is the Same Anymore: According to Ted Anderson, several elements introduced in the final episode will play a role in the comic, as the Land of Ooo has been changed quite a bit by the events of the finale.
- Official Couple: Just like in the original series, Princess Bubblegum and Marceline.
- Post-Script Season: Essentially. Despite not being canon, it's more of a "What If" in terms of what happens after the end of the series.
- Ship Tease: Between Finn and Huntress Wizard in the final issue.
- Huntress Wizard: Home isn't a place you can lose. Home is where all the feelings you have let out into the world come back to you. Don't worry about the where of home. Home will be where love and trust is. (places her hand on Finn's chest)Finn: "Love", huh? (smiles at HW)Huntress Wizard: Love comes in many forms, my good Finn. Don't go putting words in my mouth.
- The Unreveal: Right before BMO reveals to Jake where Future Bubblegum is, he glitches out again.
- Wham Episode:
- Issue 2: Marceline is slowly losing her memories and the reason she's collecting old objects is to help recover her lost memories, which is the reason why Hunson brought Finn and Jake to the future. Meanwhile, Marcy's three robots built from BMO's spare parts discovers that there's a thief stealing Marcy's objects from the castle vault. At the end of the issue, Finn and Jake manages to catch the thief: a still functional BMO.
- Issue 5: Finn's mom and the rest of the humans built a town simply called "Humantown", led by a man named Leader Malloy. Princess Bubblegum tries to strike a diplomatic alliance between the three Candy Kingdoms and Humantown, but Malloy refuses and declares that the town should be isolated from the rest of Ooo and its inhabitants except for Finn, who can enter and exit the town anytime. Unsure of this, PB asks Finn to keep an eye on the humans. On the next day, a giant insect attacks the town, but Finn scares it away by cutting one of its antennae off. However, he and Jake finds out that the insect was a robot, implying that someone was behind the attack.
- Wham Line:
- Marceline drops a bombshell during the first issue, especially after the events of the finale.Marceline: Who's Bubblegum?
- Marceline drops a bombshell during the first issue, especially after the events of the finale.
- What Happened to the Mouse?: For some unexplained reason, Finn's Night Sword is replaced with a new sword in the comic, which is kinda odd, considering the sword survived in the future, with Sweet P as its new wielder.