(recap of last episodes)
Dipper: I wonder what this word means.
Phineas: Ferb, I know what we're gonna do today! We're gonna have an adventure!
Dipper: Don't worry Mabel, it's.... (gets zapped by Doof's inator) ...what was I saying?
Phineas: Hi, I'm Phineas.
Mabel: I'm Mabel.
Dipper: Uh, Phineas? Do you live in the Tri-State Area? Because that's where Book #4 is.
Phineas: Dipper, I know what we're gonna do now!
Dipper: Guys, you're not gonna believe this, but this is book #5 and it says that it's the last book!
(theme song plays (same thing like last times))
Phineas: So, where do we have to go now?
Dipper: It says here that we will meet someone at the top of the tallest mountain at Gravity Falls.
Mabel: I remember the password back. Ztrimhsnefood.
(portal opens and they enter)
Mabel: So, where is the mountain?
Dipper: It's up...there. (points near the sky)
Phineas: That's gonna take a few hours, but I'm ready.
Dipper: Let's go.
(after an hour)
Mabel: What are you guys going to do after we're done here?
Phineas: I don't know. Probably go home.
Dipper: Me too.
Mabel: Let's just go.
(meanwhile, in a dark room)
Man: Hahahaha! They have fallen right into my trap! Those fools don't even know that Heinz made up that book to trick them! Now, I will make them gone for good!
(an hour later)
Dipper: Ok, I think we're almost there. We just have to follow this map up to the mountain and find this mysterious person.
Phineas: I don't know Dipper, what if this is a trap?
Mabel: Yeah?
Dipper: We don't know that guys. Now, come on.
(a few hours later, they finally get to the top)
Mabel: We made it!
(it starts raining)
Phineas: Um, does it rain often here?
Dipper: Not really. I wonder what's going on?
(wind picks up)
Mabel: Uh, Dipper?
Dipper: I have no idea what's going on!
(a huge black vortex appears above them)
Phineas: It's...it's the darkness!
Dipper & Mabel: The what?
Phineas: It's something from a friend's show I know.
Dipper: Which one?
Phineas: You'll know. (gets phone out of pocket) Timmy? You there?
(immediatly, a boy in a pink hat and shirt appears)
Timmy: I came as soon as you called, Phineas! What the heck is going on here?!
Phineas: The darkness is back!
Timmy, Cosmo, & Wanda: The darkness is back?!
Phineas: We need to change everything back to normal! Before I met Mabel and DIpper here.
Mabel: Dipper, does the book say anything how to stop it?
Dipper: No.
Mabel: You didn't even look at it.
Dipper: That's because this book is fake! Look at the cover! (shows that the number 5 is getting ruined) The number 5 was written in ink, the book is fake!
Mabel: "gasps" So, we're really going to be changed before Dipper learned that word?
Timmy: Yep.
Mabel: Phineas, I just wanted you to know you're really nice!
Phineas: You too!
Mabel: Um, Timmy? Is anyone after your 'wish' gonna remember any of this?
Timmy: Nope.
Mabel: Just wondering. (kisses Phineas)
Phineas: (in a happy tone) Mabel!
Mabel: Hit it, Timmy!
Phineas: Wait, stop, stop!
(Poof!)
(Mabel and Dipper are shown in their rooms sleeping)
Mabel: (wakes up) (gasps) Dipper! I just had the strangest dream! We were on this mountain and we were going to die!
Dipper: Wow. I had a weird dream too.
Mabel: Weird. So, what do you want to do now?
THE END?