Well, it could be about the kids going on their own crazy adventures. Maybe they inherit Finn's bravery and Jake's shape - shifting abilities and use them to save the Land of Ooo from a new threat.
It could be an old enemy of Finn and Jake who has come back to take revenge on their kids. Maybe the Ice King's descendants or something related to him.
Finn might initially go into denial. He could keep expecting Jake to just pop back up like he always does. Then he'd probably get angry, at himself or at whatever caused Jake's death. Eventually, he'd start to accept it and try to honor Jake's memory by being a better hero.
Self - discovery is also a significant theme. Jake is constantly learning about himself, his abilities, and his place in the Adventure Time world. In fanfiction, this can be seen when he faces challenges that force him to reevaluate who he is. Additionally, the theme of friendship is ever - present, as Jake's relationships with his friends are a huge part of what makes the Adventure Time universe so appealing.
There may not be mainstream, published Adventure Time Jake romance novels. The show focuses on a lot of different elements like friendship and adventure. But if you're really interested, you could try reaching out to the Adventure Time fan community. They might be able to point you towards some self -published or digital works that explore a romantic side of Jake.
In the Adventure Time story where Jake is sick, the whole dynamic of the duo changes. Finn becomes the caretaker. He might have to deal with Jake's mood swings due to the illness. Jake could be really grumpy or overly emotional. And there could be other characters involved too. Princess Bubblegum might come to help, bringing her scientific knowledge. She could run some tests on Jake to figure out what kind of sickness he has and how to cure it.
Princess Bubblegum would be a great addition. She could offer her scientific knowledge to help Cake and Jake in their adventures. For example, if they encounter a strange chemical reaction or a mechanical problem, she could come up with a solution. Finn is also a good choice. His bravery and sword - fighting skills would be useful when they face dangerous situations. And Marceline the Vampire Queen could add an element of mystery and her vampire powers might come in handy at times.
Well, 'Jake's Dreamscape' is a really cool fanfiction. In this story, Jake enters a dream world where the rules are all different from the normal Adventure Time world. His shape - shifting skills are put to the test in very unexpected ways. It's a great exploration of Jake's character and the wild possibilities within the Adventure Time setting.