#and murray as old man mcgucket is just so funny to me

[starkstruck27]

Okay wait, but I've got another idea: a Gravity Falls AU. Recently I've been rewatching the show, and I think it has a lot of similarities to ST, so I've been thinking...

Robin and Steve are twins (fraternal, with Robin being two minutes older, and I'm thinking they're, like, 16 or 17 in this AU) and they're sent by their parents to stay with their crazy uncle Hopper over the summer. They live in Chicago, but Uncle Hopper lives in the sleepy little town of Hawkins, and is kind of a mystery. He owns a tourist trap called the Oddity Emporium, and even though he's kind of a stingy, crotchety older guy, he loves them, and the Emporium is where they live.

Robin and Steve move into the bedroom in the attic, and as soon as they get settled, they start to notice some oddities outside of the museum. First, Robin swears she sees a fairy flying around when they're exploring the woods, then Steve is convinced that one of the statues in the town square is in a different position when he comes out of the supermarket, but they have no proof. They try to chalk it up to their uncle's place just messing with their heads, but then, they're exploring the woods one day, and Steve trips and falls into a ditch.

Robin immediately climbs down to check on her brother, and he's fine, but he hit his head on something and they decide to check it out. It turns out to be a chest buried at the bottom of the ditch, and when they finally pry the ancient lock open, they find a book inside.

Steve isn't impressed at first. It's a weird book, what's so special about it? But Robin cracks it open and they start to read, both amazed by what they find. It's some kind of journal, apparently the third in a set, that has a mysterious unknown author, and it details all of the weird creatures and supernatural goings-on that make Hawkins so weird.

At first they don't want to tell anyone about it, not even Uncle Hopper. They don't know why the book was buried, but it seems like there was a reason, right? Maybe it's a government conspiracy or something. But they study it together, trying to figure out who in the crazy little town might have something to do with writing it.

They become friends with Eddie, another guy a little older than them who works at the Oddity Emporium as a handyman/cashier/whatever else is needed of him, and his friends, Gareth, Rich and Jeff. They're the cool kids in Hawkins, rowdy teenagers who just always seem to have the best hangout spots (including a secret ladder that leads to the roof of the Emporium) and the most fun of anyone else in the town. They also befriend some local kids who come with them on adventures, Dustin, Will, Lucas, Erica and Mike. They're all younger than Robin and Steve, but they're pretty cool, and they're more accustomed to the weirdness that plagues the town, so they're pretty awesome to have around.

There's also Mrs. Byers, who runs the diner in town, and her other son Jonathan, who is kind of friends with Eddie and his gang. Jonathan is also Will's older brother, so he and his girlfriend Nancy often tag along on adventures. And of course there's El, the psychic girl who is the centerpiece of the other tourist attraction in town, the Hut of Hypnotism. Her dad and Uncle Hopper have been in a war for best tourist attraction for years, but because El made real friends and doesn't like using her powers (which no one knows how she got) just for him to make money, Hopper often comes out on top. There's the local cops, Powell and Callahan, who are not great at their jobs, but perfect for comedic relief, and finally, the local kook, another hermit who lives in a shack in the woods named Old Man Murray.

Robin and Steve get to know the people of the town pretty quickly, and they find them all pretty amusing for the most part. Even Old Man Murray has his good points. But there's one person that they meet a few weeks into their stay that they simply cannot stand. Billy Hargrove, the rich asshole who's great great grandfather apparently founded the town.

Billy seems just as awful as his parents, who live in the mansion atop the hill with him and his sister, but they kind of have to put up with him, because his little sister is friends with the other kids they're friends with, and he's told to keep an eye on her. But he's still a jerk, snarky and always acting like he's better than everyone else because his family is rich, and he loves to be the center of attention. But as the summer continues and they battle more and more weird monsters, Steve and Robin start to think that he's not so bad.

Especially Steve. Sure, they had a rough start, but after fighting a horde of Goblins, uncovering an ancient tomb with a mummified Native American Chief inside, and working together to capture a vampire that's haunting the old wing of the Hargrove mansion, they've kind of bonded whether they like it or not.

It's about halfway through the summer when things start to get really weird. Firstly, Steve and Robin had to time travel over and over again to make sure the timeline stayed correct and so Steve would still get to keep the pet goat he'd won at the county fair. It was a whole thing. Then, they find out that El's dad, in order to try and get a leg up on Hopper and try and destroy his business, had the second of the three journals, and they had to fight not only the man himself to get it from him, but also some kind of dream demon that went by the name Henry Creel and seemed to enjoy toying with them. They didn't defeat the demon, but he told them that he'd leave them alone until they became important, so they tried to forget about him. And finally, they tell Uncle Hopper about the books, which he laughs off and says is fake, but that some of the things in it would make great attractions at the Emporium. Robin and Steve know the truth, though, and still use the journals to their advantage every time they need to.

Finally, the summer is two thirds done, and Steve and Robin have three major problems: One, they're still no closer to finding the author of the journals. Two, Henry is back, and he's hinting at something big coming soon. Three, Steve has developed a huge, embarrassing, inexplicable crush on Billy Hargrove.

When Robin first finds out about that third one, she groans and tries to remind Steve that all summer Billy was a jerk to him and that they have bigger problems to worry about. But Steve tries to tell her that Billy is changed, he's not really as big a jerk as everyone says and he knows it sounds crazy, but he's pretty sure Billy likes him back. Robin rolls her eyes at first and just tries to focus on their other mission, finding out who wrote the journals, but she can't do it by herself. Every time she tries, Henry appears in her dreams and throws her off course, and it's getting annoying and, quite frankly, terrifying. But eventually Steve returns to help her and they find out that the answer lies much closer to home than they'd realized.

They're walking around the Emporium one day when Robin drops something and it rolls under the porch. She and Steve crawl under to get it, but their combined weight causes a bit of the ground to collapse and they fall into a basement they didn't know was under the Emporium. They're confused, because it doesn't look like the kind of place that Uncle Hopper would have under his house, almost like a bunker of sorts. But the real surprise is when they find not only the journals that they showed Hopper and he never gave back, but the first one, too. He had it all that time.

They're obviously pissed, so they grab the books and find the way upstairs, using an elevator that leads them to a staircase that opens up into the (thankfully empty) gift shop of the Emporium behind the vending machine. They find their uncle and demand an explanation, and he finally tells them the truth.

His daughter was an incredibly intelligent girl. She was always looking for adventures and documenting her findings in the very books they were holding in their hands. This was all before they were born, so they never met their cousin Sara, but it wouldn't have mattered anyway. Hopper told them that she got in too deep with her mystery hunting, and she encountered Henry Creel long before they did. Only, she made a deal with him, a bad one, and she ended up dead.

Hopper says that the official story that ran in the newspapers was that she had brain cancer, and an aneurysm is what took the young girl away so suddenly. But Hopper knew the truth. Something in those books had killed his little girl, and he didn't know if it was still out there, but he hoped that if he could hide the books well enough, no one would be able to use them to go looking for it. He kept only one for himself, just wanting to hold onto some little piece of her, because it was her greatest passion, and it was all he had left.

After he tells the twins the story, they tell him that they've encountered the same demon, and that it wasn't even their fault, but that they've beat him before. Hopper is amazed, and asks how they did it, but they say they aren't exactly sure, they just knew they didn't give up until he surrendered.

Hopper is still amazed, but he tells them that if they ever encounter the demon again, they're not to engage with him, because he's smart, and he has no qualms about killing for his own gain. He also tells them that he doesn't want them going around looking for any other weird creatures or anything, because if they get caught in some kind of trouble, he doesn't know how to help them and he doesn't want them getting hurt. They say they won't, but they both know they're lying.

Especially when, two days later, Henry comes back, and he says that it's time. He visits them in a dream they end up sharing, and says he's got big plans coming, so he's gonna give them some advice. He tells Robin that she thinks too much, and she should learn to clear her head. Then he tells Steve to keep his friends close, his family closer, and his enemies closest. Then he disappears, and the twins wake up together, scared and confused. But they know that whatever Henry is planning, it's up to them to stop it.

It's a week before they're set to go back home that it happens. They're not sure how, but some sort of rift in the fabric of the universe allows Henry's hellscape of a dimension to leak into theirs, and even more horrifying creatures than the ones they've already seen that summer (and that's saying something, considering they've encountered shapeshifters and bears with multiple heads) start infesting Hawkins and walking around like they own the place. Robin and Steve are both terrified, but they know they have to help fix it, so they start trying to figure out how.

They know it's going to be different than the first time they fought him. That time, they were I the mindscape, where whatever they could imagine would happen, and they could conjure weapons and such. But this time, they're in reality, and they have to rely on their wits and whatever they can scrounge up around them to fight with. They don't know how, but they know they've got to do it.

Finally, they're almost ready to confront the dream demon and fight him with their friends, but before they can get close enough for even one swing at him, he stops them, and starts to monologue, as villains do. He says that it's cute that they thought there was strength in numbers, and he says that that's not how he plays the game. He reminds them of the advice he gave them, and says they're going to need it if they want to save their friends, who he has levitating off the ground by now, all of them frozen and looking terrified. He says that they're going to play a game, and their friends are taken away, flying off to somewhere else in the labyrinth of a palace Henry's built for himself. He tells them that he put one of their friends in each different room of the place, and that they're going to have to go through one room at a time to attempt to save them. Each room will get more and more difficult, and they'll each take a wing of the palace to go through, they can't do it together. They'll get three tries to answer each riddle, and if they can't, then their friend in that room will die an agonizing death. Robin and Steve are terrified, but they stand their ground, and say that they'll do it.

Henry is all too delighted, and tells them that if they manage to do it and get all their friends out alive, then he'll allow them a chance to try and beat him. He's clearly doubting their abilities, and entirely too amused for their liking, but they know it's their only choice, so they accept. And as such, the games begin.

They each get seven rooms. The riddles for Robin start easy, but the answers are so simple that she begins to overthink them, and it almost costs her her second room. But she remembers the advice Henry gave her, and she knows the stakes. She also knows that he never gave them a time limit, so until she's sure she's got the answer, she doesn't even chance it. She saves Mrs. Byers first, then Jonathan, Mike, El, and Erica. The second to last room is occupied by Eddie, and it's one of the simplest riddles, but Robin almost loses again because of the overthinking. She is down to her final try when she finally gets it and saves him, and is finally sent on to her last room, which contains her uncle Hopper. She is timed on that one, but even under the pressure, she's noticed a pattern to all the riddles, they all have something to do with fire, so she figures it out by process of elimination, and saves her uncle.

Meanwhile, Steve is faring a little differently. He doesn't just get riddles with simple answers like his sister, his riddles all have something to do with the person he's trying to save. Something that he would only know if he knew them well. He figures out that this is what Henry meant by "keep your friends close", and once he figures that out, it's pretty much a cakewalk. He saves Nancy, then Murray, then Lucas, Will, Max and Dustin. Finally, he gets to the last room, and he finds Billy inside. This is the hardest room for him, and even though he's not timed, he only gets one chance to get this one right. He thinks about all the other riddles, all of them having to do with either some fear the person had or some kind of thing that could be used against them somehow. And this riddle is one that hardly makes any sense, where the others were mostly pretty simple. Steve tries to break it down bit by bit, like his math teacher taught him to do when they were doing a tough problem, and he finally figures it out. It's asking for the one thing that would make Billy surrender anything for. Steve gives his answer, and it's correct.

After that, Billy drops back to the floor, and the two of them, as well as Robin, Hopper, and everybody else, are teleported back in front of Henry, who is only slightly ticked off that Robin and Steve have figured it all out. But, he plays fair, and tells them that they can take their shot at him. Robin and Steve can't do any kind of sibling communication between their minds, but they did make up a secret language when they were kids, so throughout the battle, they're able to communicate without Henry understanding what they're saying or planning. They talk about the riddles, how all of Robin's had something to do with fire and how Steve's all had something to do with how to gain the upper hand on each of the people he'd saved. It only takes them a second to figure out that Henry was testing them that whole time, because it wasn't just about them being able to save their friends.

It was about seeing if they were smart enough to figure out what his weakness was.

Ultimately, Henry's cockiness led to his own downfall, because as soon as they figured out that fire was his weakness, they found a way to light the sucker up. It hadn't been easy, and they didn't escape unscathed, but once Henry went down, so did all of his minions.

They didn't remember much after that, both of them being too tired and too worried about their friends and the rest of the townsfolk to worry about what happened then, but from what they can guess, Henry died and all of his demons were sucked back into the portal they came out of, and the town was restored to its former glory. There were still weird creatures all around, and it took them a while to repair some of the damage done to buildings and such, but for the most part, Hawkins just went back to being Hawkins.

Soon enough, it was their last day in town, and as they packed up their things and tried to prepare themselves to say goodbye to their friends, they got to talking about Henry and his game again. Robin tells him about how she almost messed up and lost twice, and he comforts her and tells her that she didn't, so it didn't matter, and even if she had messed up, it wouldn't have been on her, it would've been on Henry. She says she knows, but it's still hard, and then she asks him what his hardest riddle was. Steve tells her about the final riddle, how he only got one shot to get it right, and how twisted up the words were so that he almost wasn't able to figure it out. Eventually though, he found out that it was asking for Billy's one weakness, and at this point, Robin interrupts with a scoff and asks how he managed to figure that out.

And now, Steve finally comes clean with her, telling her that after the whole vampire fiasco earlier in the summer, he and Billy started seeing each other. He says that all summer, he'd been wanting to find a nice girl or guy to have a summer romance with, and he finally found it in Billy, and it was around then that he started to get more involved with her and the journal stuff before the shit hit the fan, because he finally had something. He says that he told Billy about Henry once and how he always tries to figure out your weakness to exploit it (in their case, it was the people they cared about) and he says that Billy told him his only weakness would be him and Max. He'd laughed it off as a joke at the time, but he couldn't have been more relieved about it when it finally came down to that stupid riddle. And he's glad he's telling Robin now, because it felt weird to lie to her all that time and now he doesn't have to any more. And Robin is happy for him, really. After all his failed summer romances that she had to bear witness to, she's glad he found someone that made him happy. Even if it was Billy Hargrove.

Finally, their conversation ends, and they have to start getting ready to say goodbye to everybody. They head out to the bus stop that's gonna take them home and everyone is there waiting for them. The kids are all hugging them over and over and practically sobbing as they make them promise to write, the young adults are all hugging them and telling them they had so much fun over the summer and they better come back next year, and the adults are loading them down with snacks for the trip and making sure they've got everything packed. Uncle Hopper even makes sure that Steve's pet goat that he won at the fair is cleared to go home with them (their parents don't know yet and he may have had to threaten the bus driver, but it's for his nephew, so who cares).

And then finally it comes time for them to board the bus. Robin is crying and refusing to let go of Uncle Hopper, the two of them forming a bond over the summer that she says better not be broken by the time they come back next summer. And Steve is emotional, too, over Hopper and everybody else there. But the person that makes him cry the most is Billy. He makes him promise to call all the time, and invites him to come stay with them in Chicago sometime and says that he'll be back to visit as soon as he can manage. Billy promises that all that will happen, and then, just before Steve has to board the bus, he hands him a little present wrapped up in tissue paper. Steve is about to open it, but Billy stops him, and says with a blush pinker than the bubblegum Robin is chewing that he should wait to open it until the next time he misses Hawkins.

That time comes on the bus ride home, after Robin falls asleep next to him and everybody in Hawkins is miles away. It's a scrapbook that Billy must've put together himself, with an entire page dedicated to everybody important and all kinds of pictures from throughout the summer, even before they got together. He got everybody to sign it, and the very last page is just a letter telling him he'll miss him and he's already looking forward to next summer.

Steve can't help the dopey smile on his face as he gets off the bus and immediately runs to a payphone to tell Billy how much he loves it and how many plans he's already making for next year.