One beautiful morning in gravity falls,Stanford is working on a new invention,wile Dipper in sitting in a chair reading journal number 3,Mable ,Candy,and Grenda are outside the mystery shack."need any help great uncle ford?"dipper asks."sure dipper,i'm trying to make a vortex minipulater."stanford states."Yes!"dipper says quietly to himself."so a vortex minipulater,huh?i don't see the project in this journal?witch journal is it in?"dipper asks."uuuummmm...i think in theeee,hm,oh the 2nd journal!"stanford says as he remembers witch journal it was in."ok!"dipper says going to get the 2nd journal and then comes back with the 2nd journal and then started working on the vortex minipulater,a few minutes later dipper hears a bus stop outside the mystery is outside playing with her friends as they see a bus stop at the mystery seemed curious to stanford and shifts his eyes to the door."go,i got this till you get back."stanford says with a smile on is face."o-ok i'll be right back grate uncle ford!"Dipper says running out the door. Dipper rushs out the shack,and runs over to mable."who is it?" dipper asks Mable."i don't know Dipper."Mable said. studdebly the doors of the bus swing open,and a girl steps out of the had a wight t-shirt on with a pare of ripped shorts,short hanging suspenders,a back pack and brown hair."whoa."Dipper says with his eyes wide."oh h-hi i'm katrena am i in the right place?,i fell asleep on the bus."katrena says with a grin."uh-uh"Dipper says in thought of katrena."uh hello?earth to Dipper?is anybody home?"Mable says sarcasticly. dipper shaks his head and says"uh- oh sorry yes if you are looking to go to gravity falls this is it,and if spacificly the mystery shack this is it!"Dipper says hoping she didn't notice him staring at her."oh good i've been waiting to get here!i've heard that there are strange mysterys here and i want to get to the bottom of them!a-all though i-i'm not sure how i'm going to do it all by myself..."katrena says with a small frown on her face."n-no way!me too!"Dipper exclaims with excitment."r-really?!"katrena shouts."yes!ahem yes,i have 3 journals and it turns out that i'm related to the auther of them!"Dipper says failing to calm down."u-uh you wouldn't happen to want a tour...w-would you?"Dipper says nervesly."i'd,ahem, i'd love one."katrena says with a smile.(fast forword to when they get to the mystery shack and dipper intraduces himself...poof!)"and this is the mystery shack"dipper says with a smile."whoa!"katreena said with her eyes open."oh woops."katreena says putting her bag on the ground."what'cha looking for?"dipper asks."my glasses."katreena says pulling out her glasses and then putting them on."uhg i feel like a nerd."katreena says with a frown."i-i think you look beautiful-uh did i just say that out loud."dipper says then pulling his pinetree hat over his face as he was blushing."t-thank you dipper."katreena says as she blushes too."so uh w-would you like to meet my uncle he wroght these journals about gravity falls."dipper said fixing his hat back the way it was."i'd love to dipper."katreena grabs her hand a rushes to the vending machine."w-what?"katreena says."watch this."dipper types in a code and opens a secret door."whoa!"katreena says with her ees wide grabs her hand agin and they both run down a staircase."great uncle ford i'd like you to meet someone!"dipper shouts running down the staircase then comes to a doorway."who dipper?"this is katreena,she came here to visit gravity falls to learn it's mysterys!"dipper says."well,hello the katreena,nice to meet you so you came here for the mysterys?"hello nice to meet you too,and yes sir,i heard there are strang things that happens here."says katreena."well then,you must be staying here for a wile,anyway would you two like to help me with my invention?"stanford asks."yea!"dipper and katreena say at the same time."you should probly sleep over this might take a that ok with you grunkel ford?"dipper asks."thats ok with me."stanford replys."ok i'll ask my aunt jess."katreena says.(she talks things over with her aunt jess and the 3 started working on the project)"ok you two its getting pretty late you kids should head to bed."stanford states."aw ok grunkle ford."says dipper."yes sir."katreena leeds katreena to a room in the shack where she could sleep.a few minutes passed and katreena was asleep,as was dipper.