The Friday of school passes without any more issue, and the week-end is close without any of the kids realizing it. Samuel has shown to be very happy about showcasing his purple friendship bracelet to match the ones he made for his friends.
As they leave school, he suggests: "Say, should we try to do a sleepover? It's been so long since I got to hang around you guys like that."
"Oh, of course! We missed that too..." claims Mabel.
"We'll have to ask our parents, but I'm sure it'll be fine..." says Dipper with a smile. "You'll do the same, I hope it'll happen."
They part ways with that optimism, and they all get the approval of their families for the Saturday night.
On Saturday evening, Sammy arrives at the Pines residence with his stuff, very eager. He's wearing his usual dark green shirt and blue pants, as he greets the Pines parents. He goes to the bedroom where he sees a guest mattress between the two beds, which gives him a feeling of comfort. He settles down and the three kids have gotten in their night attires.
The twins are taking the opportunity to tell their friend more about their summer and the people they met, from family to friends, to people they helped get into a brighter path.
Samuel listens, very interested, and claims: "They all sound like a lively bunch. I bet you didn't even miss me much with that many people around!"
Dipper reacts seriously. "Don't be silly... It's true that they kept us busy, and we loved their company... but of course we missed you too!"
Mabel nods and Samuel reveals with a smile. "I was half joking, don't worry!".
Dipper then suggests: "Well, how about some entertainment now? We can seek if we find something good on TV."
Mabel stands up. "Good idea, I'll prepare some night snacks! Sammy, feel free to search while I'm away, I don't mind."
She gets a slightly teasing "Yeah, right..." from her brother, which she ignores.
Sammy surfes the channels and finds a cartoon marathon. "Oh, neat. You'll like that, right?"
Out of nowhere, Dipper reacts disgusted. "Yuck, stupid cartoons...".
This obviously makes Sammy confused. "Uh, what do you mean?"
He gets kind of a big rant for an answer. "It's so boring and predictable. It's like..." he makes a mocking voice to continue "we have our boring heroes to follow, watch their stupid heroic acts and get to witness the pathetic defeats of very well-written and competent villains that should've won" he goes back to an angry voice "... if only the producers had the guts to write a logical ending where the villains get their deserved victory, that'd be a lot better. Boring heroes winning all the time against superior characters in style, personality, powers and motives is awful!"
Sammy feels... appaled. "But... you always told me you admired heroes..."
Dipper feels almost offended. "Me? You can't be serious! They're so bland..."
As Samuel takes time to process everything he's heard, Mabel comes back with a platter, unaware of the conversation. "Alright, I got cookies, fruits and... Oh geez, I forgot the milk..."
Dipper stands up. "Don't worry Sis, I got this!" He leaves the room in a hurry and Samuel takes the opportunity to question Mabel after a few moments of hesitating silence.
"Say, has Dipper... changed a lot during your vacation?"
Mabel is confused about what he means and, still avoiding to reveal things, she answers "Well, we both changed somewhat from discovering new things, but why do you ask?"
Samuel starts explaining what just happened. "Well, you see, while you were away, he..." But then, his sentence is stopped by very convenient timing.
"I got the milk, fresh right out of the fridge!" Dipper carries a platter with the three glasses and the other two forget about the discussion for now. He hands over the glasses, giving the center glass to Samuel. "Let's dive in!" The three drink their milk together and then start watching TV with the snacks.
After around 20 minutes, Samuel suddenly hears his stomach making weird sounds. "Ow..."
Mabel turns around. "What's wrong, Sammy?"
"I feel like something is wrong with my stomach... It..." The pain only intensifies from there. "OW! It hurts!" He goes from a sitting position to laying on the mattress, his hands on his stomach, clearly being in pain. Mabel watches worried while Dipper... smirks, unnoticed.
Mabel is very scared, trying her best to figure out what's going on with her friend. Meanwhile, from behind her, Dipper looks very satisfied. He's guilty of all that and he's clearly enjoying this.
Dipper suddenly switches to a look of fake worry when Mabel looks at him from a distance. "We all ate the same things tonight, this is really weird only he has a problem... I suppose he ate something bad earlier today. Maybe there's some kind of digestive medication in the kitchen. I better ask mom!" She runs outside as she hears the screams of pain from her friend really forcing her to hurry. Dipper takes the opportunity to take a knee.
Samuel speaks between many groans of pain. "D-Dipper, my friend... I don't feel good...". The kid extends his hand to seek comfort in the pain, but instead...
Dipper grabs his hand in a fairly rough way and speaks in a sinister manner, while also sounding like he's enjoying what he sees. "Relax... Your pain... Let it work... Give in... Scream in agony... It is... a beautiful sight..." He lets out a sinister giggle before Sammy stops moving after many groans of pain. The poison he put on the milk did its job.
Mabel enters back a few moments later with the appropriate medication, and she sees the end of the scene. "Oh no... Am I too late...?"
Dipper lies about what happened, from a reasonable distance from her face. "Don't worry, it's alright... I comforted him to help him fall asleep..."
Mabel believes this with some levels of relief and goes to sleep alongside her brother, being so concerned that she gives Waddles a goodnight pat instead of a hug. Dipper, from the other corner of the room, makes another fake reassurance with an interesting choice of words as he goes to bed.
"Don't worry. His pain... is over..."
And with that, an evil laugh echoes away from the situation.
Author notes: And once again, something really bad happens to poor Samuel, while Dipper keeps being more and more creepy about it. While it all could continue on and on, the next chapter will have this situation move along so it doesn't get too repetitive (or too cruel to little Samuel).
Also I've described Samuel's regular attire at the last minute because this is something I needed to do to help picture better, I suppose.