10 Bookmarked Items in Grass Demon (Adventure Time)
List of Bookmarks
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Keep Yourself AU by blenselche
Fandom: Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023)
03 Mar 2025
Summary
At 27 Finn Mertens finalizes a wish that will allow him to channel all of his lived experiences into a new, fresh self in the hopes he can be a little more selfish, be a little less proud and not make the same mistakes that he cannot help but dwell on.
- Words:
- 212,490
- Works:
- 8
- Bookmarks:
- 13
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Summary
Finn collects Fern's shredded body after his arm mishears him in his want to just go home together, and never one for reading is left ignorant of the grass blade's demon contract and its terms, unknowingly burying Fern alive. Fern reforms and takes off to the Nightosphere to find himself after being forced to confront what he is. The comic starts with him reappearing six years later, much to the annoyance of Huntress Wizard, Finn's casual hook up and confidant.
This uses stuff from Keep Yourself Redux but it's not required reading. The characters are the same though, they just branch off at different points.
Series
- Part 1 of Vanlife AU
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Summary
THIS FIC IS ABANDONED AND REWRITTEN AND WE PRETEND IT NEVER HAPPENED OK? I'm keeping it up because I hate when trashy/bad fics I loved get taken down by their authors, so despite how I feel about it I don't want to do the same to anyone else.
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Vanlife AU by blenselche
Fandom: Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023)
19 Oct 2025
- Words:
- 487
- Works:
- 2
- Bookmarks:
- 2
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Keep Yourself Redux by blenselche
Fandoms: Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023)
05 Nov 2023
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Summary
“I saw Fern when I was taken by the Lord of Eternity,” he utters against his palm before dropping it, “and he said something that’s stuck with me this whole time. I think about it constantly.” Finn glares towards his feet, narrowing his eyes and baring his teeth. “‘I can’t save everyone, and maybe not everyone needs saving. Do I really think everyone’s better off because of me.’ He was right and I got him killed because I couldn’t just accept that he didn’t need my ‘help’.” His eyes squeeze shut, knuckles turning white as he fists his hand at his side. “I’m tired, Prismo,” Finn whispers, voice crackling roughly over the tar in his lungs.
Series
- Part 1 of Keep Yourself AU
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Bookmark Tags:
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Bookmark Collections:
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Summary
What if Fern got what he wanted that day? He successfully killed Finn the Human and was now attempting to live his life as he always should have... but, now what? All the while, a certain uncle takes matters into his own hands and creates something... interesting.
Series
- Part 2 of Adventure Time AU Ideas
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Bookmark Notes:
Read 1+
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Summary
Pain, trauma, depression, near death....
All of these events will happen soon enough to a boy that is known as the last human left on Earth. Joshua and Margaret see the future of their adoptive son and are overwhelmed by the amount of pressure the kingdoms of Ooo will put upon their boys. The amount of villains they face are deemed too strong, even for some of the elite wizards. They would do anything to keep their boys safe, and they would mean anything.
And that is what Prismo is worried about.
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Summary
This is a ~30 page comic that can be read without knowledge of the rest of the series and can be read as platonic.
Their soul snakes in on itself like flustered birds panicking in their chests as it tries to magnetize and recombine when within a certain distance of one another, and so Fern's job of stalking Finn turns into a headache of trying to keep his silence in all his double's one sided ramblings.
This comic starts after the confrontation in Seventeen and ends with Penelope (Finn's next incarnation in the comics) entering the Heart of the Forest, nostalgic sensation rushing down her spine as she relearns that 'everything stays but it still changes' one thousand years in the future.
Series
- Part 7 of Keep Yourself AU
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Bookmark Notes:
The complicated platonic relationship between Finn and Fern
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Summary
After being put through the wringer by way too many people, Fern finally has the chance to make his life belong to himself again.
Predictably, he takes it.
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Keep Yourself AU (now with less spice) by blenselche
Fandoms: Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023)
25 Mar 2024
Tags
Summary
(fandom grandma voice) back in my day AT fans were 20 year old stoners, there's a lot more teens around now just discovering it because of Fionna and Cake, and while I cannot stop them from reading my VERY EXPLICIT AU I'd rather they have something more appropriate to consume, so, here we are. All E rated scenes have been rewritten or wholly removed if they hold no plot significance.
“I saw Fern when I was taken by the Lord of Eternity,” he utters against his palm before dropping it, “and he said something that’s stuck with me this whole time. I think about it constantly.” Finn glares towards his feet, narrowing his eyes and baring his teeth. “‘I can’t save everyone, and maybe not everyone needs saving. Do I really think everyone’s better off because of me.’ He was right and I got him killed because I couldn’t just accept that he didn’t need my ‘help’.” His eyes squeeze shut, knuckles turning white as he fists his hand at his side. “I’m tired, Prismo,” Finn whispers, voice crackling roughly over the tar in his lungs.