(I'll be skipping some episodes I don't really see a point in having Y/n take part of, Tree Trunks being one of those first ones.)

[The episode begins with all of the Candy People, along with Finn and Jake, dancing in the Candy Kingdom. Y/n is nearby with a drink in his hand taking a few sips.]

Finn: Candy Party! Jake! This party is so crazy!

Jake: I know, Finn! I know! [Laughing]

Gumdrop Lass 1: So, Finn... Do you have a girlfriend?

Gumdrop Lass 2: Oh, my gosh! I can't believe you just said that.

Punch Bowl: [Laughing] What a wonderful, marvelous party!

Cinnamon Bun: Okay. I'm gonna do it. Okay-okay-okay. Everyone watch! I'm gonna do a flip!

[Cinnamon Bun stumbles backward and hits his head on a tower wall, cracking it]

Cinnamon Bun: Oh no!

[The crack streaks upward toward the balcony where Bonnie is dancing. Y/n notices this and wings pop out.]

Y/n: Shoot!

[The tower crumbles and Princess Bubblegum falls]

Finn: Princess Bubblegum's in trouble!

Y/n: Finn! Jake! Get the people away, I'll save Bonnie!

Finn/Jake: Right!

[Finn and Jake go to save people as Y/n then takes off towards the tower as Bonnie falls towards the ground]

Bonnie: Ahhhhhhhhhh!

[Y/n manages to catch her before setting her down and sticking out his hand as a circle appears on it and the tower begins to reverse in time fixing itself.]

[The Candy People gasp and murmur]

Finn: The people are safe Bro!

Y/n: Nice job you two.

Bonnie: Please! Calm yourselves, my people. I am safe! Oh, thank you, Finn, N/n. You two truly are heroes today.

Y/n: Been that for a long time.

Finn: Cool.

Bonnie: [Pondering] Hero... Hmmm... Heeeeerroooo... Hey, I just thought of something!

Finn: Uhh... What'd you think of?

Y/n: Heh, I know exactly what she thought of.

Bonnie: Of course you do. Anyway Finn, I'll show you. Come on! We'll go through my secret entrance. [To the Candy People] Alright, everyone. Turn around.

[The Candy People and Jake stare blankly at Bonnie]

Bonnie: [Whispering] Well, turn around. This entrance is secret.

Candy People: Oh.

[The Candy People and Jake turn around]

Bonnie: N/n if you would help me?

Y/n: I gotcha Bonnie. 

[The two of them each pull a brick out of the wall, exposing a hole.]

Bonnie: Math. Hurry, Finn, N/n!

Finn: [Laughing] No way!

[Princess Bubblegum and Finn both dive into the hole in the wall]

Y/n:

[Y/n reaches back out and pulls the bricks in, covering the hole again]

Bonnie: [Pulling a yellow globe out of a chest] Here it is. Check it out.

Finn: A magical globe?

Y/n: Nope.

Bonnie: No, Finn. It's what you can see through the globe.

[An image of a book appears in the globe]

Y/n: There she is, been a long time since I've seen her.

Finn: You know that book Bro?

Bonnie: He does, he was its previous owner. It's called the Enchiridion. It's a book meant only for heroes whose hearts are righteous like N/n's.

Finn: Shmow-zow!

Bonnie: The book lies at the top of Mount Cragdor, guarded by a manly minotaur. It's waiting for a truly righteous hero to claim it!

Finn: Do you think I've got the goods? 'Cause I am in to this stuff!

Y/n: Yeah you got the goods Finn, the book is now yours to go after.

Finn: Then off I go!

[Finn jumps out of a high tower window]

Bonnie: You going to go help him get it?

Y/n: Yep, later Bonnie.

Bonnie: Before you go!

Y/n: What's up Bonnie?

[She kisses him on the cheek making him smirk.]

Bonnie: For saving my earlier and fixing the tower.

Y/n: Anytime Bonnie, see ya later~

Bonnie: See ya N/n~

[Y/n then flies out the window.]

Bonnie: [thinking] I still am so in love with him.

Finn: Jaaaaaaaaake!

[Jake stretches up to catch Finn while Y/n flies next to them]

Finn: Thanks, pal.

Bonnie: [Waving] Farewell, Fi—Oh, wait a minute... [reaching into her belt, she pulls out a handkerchief and waves it] Farewell, Finn the human boy!

Finn: Bye, Princess! [To Jake and Y/n] You know what time it is, buddy, bro?

Y/n: Of course I do.

Jake: Aaaaadventure time?

Finn: Yeah, man!

Y/n: Let's go!

[The scene changes; Finn, Y/n, and Jake are now at a gate in a wall surrounding Mount Cragdor]

Y/n: Oh Hey Key-per

Keyper: Y/n it's good to see you again, are these two your students?

Y/n: Finn is, Jake just comes as great part of the deal. Make sure to give them the introduction.

Key-per: Of course, Greetings, young heroes to be. This mountain is called Cragdor. Its purpose is two-fold: To protect the Enchiridion and to test the hearts of those who seek to possess it. Many noble challengers have entered the temple to pass the grueling trials that lie behind these walls, but no one has ever left here alive or dead! Only the truest most worthy hero can receive the heroes' Enchiridion and walk out these doors again! If it is you, friend, [giggles] and I cannot say that I am certain, but you are verily welcome to try; However, first you must pass my riddle. My name is Key-per, and duly so, for I carry the key to this door, but all is not how it appears, you see. Or perhaps you do not see at all. [Giggles] Perhaps the key is in you, child, but you cannot use your brawn here. The door is magically sealed.

[Finn picks up Key-per, shoves his head into the key-hole and turns him]

Key-per: Oh ho! You've unlocked the riddle of the door. [Laughing] Brilliantly done, child! Please, reveal to me how you unraveled my clue.

Finn: I just thought you'd look cute stuffed in that lock.

Key-per: Oh, yes. That's how most people get in. Unless your Y/n who just smashed the door open.

Y/n: You never said how I had to open the door.

Key-per: Fair enough.

Finn: Bye!

Key-per: You've passed the first trial, young heroes, but prepare yourselves! [To the camera] For there are many trials ahead of you, and each trial is more treacherous than the last.

Jake: [Sniffs] Enchiridion is... [sniffs more, points] That way.

Y/n: How exactly do you know what the book smells like if you've never seen it?

Jake: I can smell a faint trace of it from you, it's quite an old trace though.... How old are you again?

Y/n: I've been around for a long time Jake.

Finn: What?! Jake! You can't smell the book from here!

Jake: It's in the castle on top of the mountain. [Sniffs] In a room. [Laughing and tapping his nose] Wish you had one, huh?

[Finn hears the voices yelling for help]

Finn: [Running towards the voices] This way!

Jake: What about the book?

Finn: It can wait. Someone needs our help.

Y/n: [thinking] Yep, he's ready for that book. Any hero would take helping someone for a treasure.

[Finn jumps over brambles and lands on his face]

Jake: Yo, Finn. Are you alright? Did you get brain damage?

Finn: I'm fine! Keep going! We have to hurry!

[Finn, Y/n, and Jake come up on three gnomes trapped in a lava pit. Finn reaches in and pulls them out]

Finn: I gotcha.

Y/n: [thinking] Here we go, these annoying little pests...

Red Gnome: Thank you for saving us. [Voice becomes menacing] Now we can destroy this old lady!

[The gnomes fly towards an old lady who is tied to a stake]

Old Lady: La la la-la!

Finn: What?!

[The gnomes zap the old lady with magic and she disappears]

Red Gnome: Every time you say "what" we'll destroy an old lady.

Finn: [Shocked] What?!

[The gnomes zap another old lady and she disappears]

Red Gnome: Every time you say "no" we'll destroy an old lady.

Finn: [Panicked] No! Wai...

[The gnomes zap three more old ladies]

Finn: Please...

[The Red Gnome zaps an old lady]Finn: Don't destroy...[The Orange Gnome zaps an old lady]Finn: Anymore...[The Blue Gnome zaps an old lady]Finn: Old women.Red Gnome: Every time you look sad we'll destroy a big old woman!Big Old Woman: Well... Ever since I got the... [Zapping sounds] Ahhhh!

Red Gnome: [To other gnomes] Hey, guys. Every time he's a big wuss, let's destroy an old lady.

Other Gnomes: [Laughing] Yeah!

[Finn runs off, distressed]

Jake: Hey! Back off, you gnomes! That kid just saved you guys! You should thank him, not destroy old ladies! Do you even know what I'm talking about? Say thank you! Say... Thank... You.

Red Gnome: Kill Him!

[Suddenly, the gnomes in freeze in fear when they feel something behind them.]

[The gnomes brace for impact but it never comes. They open their eyes to see Y/n glaring at them.]

Y/n: I thought I told you three last time to never do that again. I thought your punishment in the lava pit was enough, but clearly it wasn't. Jake put them back in.

Jake: Right away.

Jake: [Shoving the gnomes back into the lava pit] Get back in there!

[Y/n then grabs some nearby logs and places them over the pit thus trapping the gnomes for good.]

Y/n: Little jerks, hopefully this will teach you.

[Jake and Y/n walk towards Finn as the gnomes scream for help but its heavily muffled]

Jake: Hey, Finn. You okay?

Finn: No way, dude. Those old ladies are destroyed because of me. I'm not righteous. I'm wrongteous. Stupidteous.

Y/n: It's fine, it's just illusion magic. Although those gnomes are jerks so they deserve what I gave em.

Jake: Exactly what bro said, they're just gnomes and illusions.

Finn: Illusions?

Jake: Yeah, man. Think. What would regular, old, sweet ladies be doing wandering the hills of Mount Cragdor?

Finn: Maybe they're lost?

Y/n: Really?

Finn: Maybe?

Y/n: This place messes with your head, it didn't effect me because I was already used to illusion magic thanks to my travels.

Jake: Bro's right.. This place is designed to mess you up. To mess with your head. None of this is real. It's all just trials to test your heroic attributes.

Finn: Hmmm... Hmmm!

Jake: Now let's go get that book.

Finn: Yeah! You're the smartest dog I know, man.

[Y/n then senses something and dodges but Jake gets eaten by a giant orge]

Finn: Jake? Jaaaaaaaake!

Ogre: You cannot pass!

Finn: Gimme back my friend!

Ogre: No!

Jake: [Popping out of the ogre's nostril] It's ok, Finn! I can get out!

[The ogre shoves his finger into his nostril, pushing Jake back inside]

Finn: Let Jake go, or I'll... [kicking the ogre's foot] I'll kick your foot!

Ogre: [Laughing] It is impossible for you to hurt me!

Y/n: Then what about me?

[[The ogre freezes for a second when he hears Y/n's voice.]

Ogre: The Immortal Wanderer?! What are you doing back here?

Y/n: None of your business, now let Jake go!

Ogre: N-No! I-I won't!

Jake: [Popping out of the ogre's ear and laughing] Don't worry, dude! I found another way—oof!

[The ogre shoves his finger into his ear, pushing Jake back inside]

Finn: Huh? [Starts climbing the ogre's leg] I'm coming, buddy!

Ogre: [Long burp] I think your dog finally fell into my stomach. Hey... Where'd you go?

Finn: [Pulling a giant dollar out of the ogre's wallet] I got your wallet, man!

[Finn grabs opposite edges of the dollar and glides away on it like a hang-glider while Y/n follows]

Ogre: No! My big money! Give it back!

Finn: Give me back my friend!

Ogre: But I killed him already!

Finn: [Crying] Fine. [Angry] I'll give you your dollar. [Yelling] Y/n COMBO MOVE!

Y/n: RIGHT!

[Finn then lets go of the Dollar and throws it at the ogre as distraction. He then grabs Y/n's hand as Y/n spins in the air gaining momentum.]

Y/n: [thinking] Thanks for the move idea Bakugo, a teacher using his student's move, who would have guessed? [out loud] X-CATAPULT!

[Y/n then throws Finn towards the ogre and Finn kicks him in the stomach]

Ogre: Oof!

[The ogre's stomach rumbles and oozes out his mouth]

[He retches and Jake comes out with it]

Jake: Whoa. Whoa. Whoa. Whoa-oa!

[Y/n then grabs Jake]

Y/n: You good Jake?

Jake: [Laughingly] Stomachs are weird.

[Y/n then flies to the entrance of a stone temple near the top of the mountain]

Jake: Dude! You just flew us all the way to the top! Wait a minute. [Sniff] I can smell the book right through this door.

Finn: Now let's find that book.

Jake: You got it!

[Finn picks up Jake and walks into the temple with him as Y/n follows behind; Jake is sniffing the air]

[They walk into a long hallway with arms holding knives sticking out from the pillars]

Finn: Whoa!

Dark Magician: Congratulations, Finn the human. You must be truly righteous to have made it this far.

Finn: Thank you.

Dark Magician: Now! Enter my brain-world, and I will show you some aspect of yourself that you're not entirely aware of.

[Finn then suddenly went into a daze confusing Jake.]

Jake: Woah, what's up with me?

Y/n: He's being tested to see if he's worthy, it usually involves slaying an evil beast and then seeing if they will slay a neutral ant.

Jake: What did you have to fight?

[Y/n pauses for a moment when he remembers what he had to fight.]

Y/n: I don't really wanna talk about it...

Jake: Alright then bro.

[Finn then exited his day but he seemed a bit off...]

Key-per: [Dressed like a devil] Congratulations, Finn the human. Now you have truly reached...

Finn: Never!

[He went to go punch Key-per in the stomach but his fist was caught by Y/n, this took him out of his daze]

Y/n: It's alright Finn, nothing to worry about anymore.

Finn: Oh, no! Mr. Key-per! I-I'm sorry. Why are you wearing that little devil costume?

Key-per: These are my pajamas. I was getting ready for bed.

Mannish Man: [Running in] Finn... Jake... You made it! And is that Y/n I see? Long time no see!

Y/n: Nice to see you too Mannish.

Finn: Are you another trial?

Mannish Man: Trial? Oh, no! [Laughing] I'm Mannish Man, the minotaur.

Finn: [Gasp] The manly minotaur from Princess Bubblegum's story!

[Mannish Man laughs and flexes his muscles at Finn]

Finn: So, can I check out the Enchiridion? Can I? Can I? Can I?

Mannish Man: Yeah. Come on. Let's go check it out. [Running off] Woohoo!

[Finn, Y/n, Jake, Mannish Man and Key-per are walking up to a picnic table]

Mannish Man: We've been watching you guys on our magical viewing globe. Take a seat guys, have some juice. There's grape and apple and the gatekeeper made spaghetti. And... Alright, Finn. Are you ready for this?

[Mannish Man pulls out the Enchiridion and makes a small explosion noise with his mouth]

Finn: The Enchiridion!

Y/n: There she is, I missed that old book..

Mannish Man: [Handing the book to Finn] You deserve it, Finn.

Finn: Really?

Mannish Man: Yeah, Finn. You're the goodest of heart and most righteous hero I've seen here since Y/n. Tenderness, ingenuity, bravery, nard-kicking ability, and when you took that giant ogre's dollar and did that Combo move with Y/n... [Laughing] Oh, man! The Key-per nearly fainted!

Key-per: It's true!

Jake: [Laughing] Hey! Crack open that book and read something for fun's sake, alright?

Finn: Oh, yeah. [Opens book] Whoa. How to Kiss Princesses? [Giggles]

Y/n: Oh man, that's a good chapter! I added my own tips to it. You should look at Chapter 69.

Finn: How to reach Tier 15 with Princesses?!

Y/n: Oh yeah, that's my own personal touch. [laughs]

Jake: Whoa. What'd you just read?

Y/n: If I told you, you would kill me.

Bonnie: [Appearing on the magical viewing globe] Yeah. What does it say, Finn? Mannish Man or N/n won't tell me.

Mannish Man: [Whispering to Finn] Hey. Don't tell her, Finn.

Y/n: [whispering to Finn] She would chop off a certain body part of mine if she found out.

Finn: It doesn't say anything, Princess.

Bonnie: [Annoyed] Mannish Man! N/n!

[Mannish Man shrugs at Princess Bubblegum while Y/n just whistles innocently]

Finn: [Leaping into the air] Awwww... Yeah!

Y/n: [thinking] Yep, this kid is gonna protect this land really good when I'm gone. If I can ever be gone...