"Hey Star have you-" Alexis then gets cut off by ducking as a narwhal nearly hits her as she then sees Star is with Glossaryck.
"Sorry Alexis but see? My spells are not coming out right at all." Star says as she looks at Glossaryck.
"Oh you must stop. It's not your spells. It's your wand. You see it's contaminated." Glossaryck says.
"Contamina... Wha? How did that happen?" Star asks in confusion.
"Yeah. How could that have happened?" Alexis asks curiously.
"The only way to find out is to go into... your wand." Glossaryck says.
"What? You can do that?!" Star asks in surprise.
"Of course. But we won't." Glossaryck says.
"Why not?" Alexis asks.
"Because by decree of Moon the Undaunted. Queen of Mewni. You must be that tall to go on this ride... Okay. Now there are some things young ladies you need to know before we go inside." Glossaryck says as he sits down.
"Kay!" Star shouts as she pulls Alexis over to sit with Glossaryck.
"The wand is an extension of your... Star what are you doing? Are you— Are you going to listen to me or not?" Glossaryck asks as he sees Star tapping her feet.
"Oh. Sorry." Star says as she stops.
"As I was saying the wand... is an extension of your memories. So you must find the thing that does not belong." Glossaryck says.
"Find the thing that doesn't belong." Alexis says in confusion.
"Good. Are you ready?" Glossaryck asks.
"Maybe." Star says.
"All right. We're inside." Glossaryck says.
"What? But we're still in our room." Alexis says as she looks around.
"We're in the memory of your room inside of your wand." Glossaryck says.
"Whoa." Star says.
"Yes. From this point on it's very, very important that you listen only to the sound of my voice and nothing else." Glossaryck says.
"Hey. Have you seen my hoodie?" Marco asks as he enters the room.
"Uh... Alexis and I are kind of in the middle of something with Glossaryck." Star says.
"No! No Star! That is not Marco. Only listen to the sound of my voice. Otherwise we will be separated." Glossaryck says as star continues to interact with Marco before Alexis sees they are now outside the school.
"Uh Star?" Alexis asks as Star sees the school.
"What? School? Okay Glossaryck. Nope. I'm not going to school..." Star says as she and Alexis try to walk away but are unable to avoid the school building.
"Looks like our memories have other ideas. Guess we don't got a choice." Alexis says as she and Star go inside the building.
"Wha...? That's Marco's. Well this definitely doesn't belong! Over, under, around and through. Grab the little Mewni rabbit. Pull him through. Oh Glossaryck! We found the thing that doesn't belong! Beam us out! Or... beam us off! ...Uh Glossaryck?" Star says as she places the hoodie on Alexis before seeing Glossaryck isn't showing up and they are still in their memories.
"Guess that wasn't it. Let's keep looking." Alexis says.
*Timeskip*
"Okay so we found our father's chair and Lil Chauncey. What else?" Star asks as she and Alexis are in the principle's room.
"That maybe?" Alexis says as she and Star see Butterfly Castle on the football field.
"That definitely doesn't belong. Let's go get it." Star says as she, Alexis, and Lil Chauncey make their way onto the field before stopping seeing a past Alexis and past Star.
"Hey!" Past Star says.
"Uh... hey." Alexis says in confusion.
"Where are you headed?" Past Alexis asks.
"Well I was just going to the foo-fo... football field and Mewni Castle— Wait a minute! Who are you?" Star says.
"I'm Star Butterfly!" Past Star shouts happily.
"And I'm her sister Alexis." Past Alexis says as she smiles.
"Nuh-uh you're not." Star says in disbelief.
"Did you find the thing that doesn't belong?" Past Alexis asks.
"Not exactly... I mean we found Marco's hoodie, and then our dad's chair, and... Lil Chauncey here." Star says as Alexis nods.
"Wait a minute. Why are there two of us here?" Alexis asks.
"Didn't Glossaryck tell you? If you're inside your wand too long all your new memories become your old memories until eventually your current timeline is overwritten by the future versions of yourself like us! Star Butterfly and Alexis!" Past Star shouts happily.
"Wait... so you're gonna replace us?" Star asks in alarm.
"Yeah! But don't worry. You'll never know the difference." Past Star says.
"We gotta go!" Alexis says.
"Oh I forgot to tell you. Stay out of our timeline. Thanks!" Star shouts as she and Alexis run off with Lil Chauncey.
"Star we got a problem." Alexis says as she and Star see more of their past selves.
"Go away!" Star shouts as more past versions appear as the group run into the castle and quickly shuts the doors.
"Wait. This is the Grandma's Room. Oh we haven't been in here since we were little babies." Alexis says as she looks around.
"No! No-no-no-no-no! Get a hold of yourself Chauncey!" Star shouts as she tries to keep Chauncey from causing damage to the room.
"Star look." Alexis says as she sees a pedestal light up.
"Solaria the Monster Carver. A castle stormed is a hero born with might as strong as steel. Kneels the void before her and the crushing force she wields." Star says as another pedestal lights up.
"Oh. Eclipsa. Queen of Mewni. To a Mewman King was wed. But took a monster for her love and away from Mewni fled." Alexis says as she reads the pedestal.
"What is it boy? What'd you find? Awww that's you isn't it? Before you died. That means this is Mom's tapestry! Get off!" Star shouts as she pushes Chauncey off another pedestal.
"The immortal monster will long be haunted by the darkest spell of Moon the Undaunted." Alexis says.
"Mom fought Toffee?" Star asks before Glossaryck appears.
"Glossaryck! You're back!" Star says happily.
"Oh! Do you have any idea how difficult that was?" Glossaryck asks angrily.
"Sorry. Moody." Star says.
"No, no. It's fine. And-and did you find the thing that doesn't belong?" Glossaryck asks.
"Well we found Marco's hoodie and our dad's chair and Lil Chauncey over there." Star says.
"But all these things... belong in our memories." Alexis says.
"Listen to me. Did you see yourself?" Glossaryck asks.
"Uh-huh..." Star says as Alexis nods.
"All right. That's not good. That's not good. We gotta get out of here. Step into my eyeball. I... Y-Yes. That's what I said. Come on. Hop in." Glossaryck says.
"Wait! But I-I didn't fix my wand!" Star says before Toffee's finger pops out of Moon's tapestry.
"That's the thing that doesn't belong!" Alexis says before past versions or Alexis and Star surround the finger.
"Star, Alexis! We've gotta go now! Get into my eye! All right that's it!" Slossaryck shouts as star grabs the finger before the group makes a rough escape as they arrive back in the bedroom.
"Glossaryck." Alexis says.
"What?" Glossaryck asks.
"I think we did it." Star says as she holds up the wand and finger.
"Yeah. That's kinda gross. Let's get rid of it. Uh... That's not exactly what I meant." Glossaryck says as Star tosses the finger in her closet.
"You know what? I think mom was right. We're not tall enough to go on this ride." Star says as Alexis nods.
"I'm not tall enough to go on any ride. But I've been on them all." Glossaryck says as Alexis looks at his eye.
"Uh Glossaryck? Your eye?" Alexis says as Glossaryck fixes his eye.
"Oh thanks. Thank you. Let me just uh... You gonna test out that wand?" Glossaryck asks as he looks at star.
"I think I've had enough magic for one day." Star says.
"Hey. Have you seen my hoodie?" Marco asks before Star accidentally attacks him with a narwhal blast.
"Well we know it works." Alexis says as she looks at Star.