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Lucas knows Steve's having a migraine forty-five minutes before Steve admits it to himself.
It's the way Steve's laugh sounds half a second delayed when Dustin makes a joke about Star Wars novels. The way his hand drifts up to press against his temple like he's trying to hold something in. The subtle squint when he looks toward the window where late afternoon sun streams through the Family Video displays, hitting the linoleum at just the wrong angle.
Lucas has spent eight months learning to read the smallest changes in another person: heart rate fluctuations, pupil responses, the barely-there twitch of fingers that might mean something's changing in a brain that won't wake up. He knows the look of someone trying to hide pain because Max did it even in her coma, her face tightening during the bad days in ways the doctors swore were just reflexes.
He doesn't believe in just reflexes anymore.
"Steve," Lucas says, quiet enough that Dustin and Mike won't hear over their argument about whether Thrawn could beat Vader in a fight. "You good?"
"Yeah, man. Fine." Steve's smile is automatic, practiced. His eyes don't quite focus on Lucas's face.
Lucas doesn't push. Not yet. He learned that, too - when to wait, when to act. Instead, he drifts closer to the window and adjusts the cardboard display for Return of the Jedi so it blocks some of the direct sunlight. Small change. Barely noticeable.
Steve's shoulders drop half an inch.
Robin's in the back room doing inventory, her voice carrying through the open door as she sings something off-key and enthusiastic. Usually Steve would join in or at least heckle her song choice. Today, he just stands behind the counter, very still, breathing carefully through his nose.
"Henderson," Lucas says, turning toward his friends. "Didn't you say you needed to get home before five? Your mom's making pot roast."
Dustin checks his watch and swears. "Shit. Yeah. Mike, you getting a ride or walking?"
The exodus happens naturally after that - Dustin on his bike, Mike calling his mom from the store phone, everyone clearing out in the chaotic way they always do, leaving a wake of disrupted displays and fingerprints on the glass doors. Lucas lingers by the comedy section, pretending to look at rental cases.
When the door finally swings shut behind Mike, Steve's facade cracks. His hand comes up to his face, pressing hard against his right eye socket like he's trying to push something back inside his skull.
"How bad?" Lucas asks.
Steve's jaw works for a second before he answers. "It's—I'm fine. Just a headache."
"Scale of one to ten."
"Jesus, Lucas, I'm not—" Steve stops, breathing out hard through his nose. "Six. Maybe seven. It's fine."
It's not fine. Lucas can see the way Steve's gripping the counter, knuckles white. The way he's holding his head too still, like any movement might shatter something.
"Robin," Lucas calls, not loud. Just enough.
She appears in the doorway immediately, takes one look at Steve, and her expression shifts from confused to understanding to determined in about three seconds. "Okay. Back room. Now."
"I'm fine—"
"Steven Elizabeth Harrington, if you say you're fine one more time I'm going to hit you with this clipboard, which will make the migraine worse, which will be your own fault." Robin's already moving around the counter, one hand on Steve's elbow, guiding him toward the back. "Lucas, you're an angel. Can you watch the front for like ten minutes?"
"Yeah, of course."
Steve tries to protest as Robin steers him away, but it's half-hearted, his body already following her lead even as his mouth shapes arguments. The back room door clicks shut, leaving Lucas alone in the fluorescent buzz of the store.
He goes to the front door and flips the sign to "Back in 15 Minutes," locks it, then kills half the overhead lights. The sudden dimness feels like relief even to his own eyes. Then he pulls his backpack from behind the counter and starts setting things on the surface in a neat row: sunglasses (the wraparound kind that makes Steve look like a dad on a fishing trip), ginger chews, two ice packs from the Family Video freezer wrapped in paper towels, earplugs still in their packaging.
The back room door opens. Robin sticks her head out.
"He's asking for you," she says, and there's something in her voice Lucas can't quite name. "I think—he might listen to you right now."
Lucas gathers the supplies and follows her into the back room, where Steve's sitting on the floor with his back against the wall, knees drawn up, head in his hands. The single bare bulb overhead is off; the only light comes from the crack under the door to the alley. It smells like cardboard and the vanilla air freshener Robin sprays too liberally.
"Hey," Lucas says, settling down beside him, not too close. Close enough.
"Hey." Steve's voice is rough. "Sorry. I'm sorry, you don't have to—"
"Max would tell you you're being stupid."
Steve's laugh is barely a breath, pained. "Yeah. She would."
Lucas unwraps one of the ice packs and holds it out. Steve takes it after a second, presses it against the back of his neck with a shaky exhale that might be relief.
"Is it the bad kind?" Lucas asks. "The one where words get weird?"
Steve nods, careful. "Starting. Can still—it's okay right now."
"Okay." Lucas keeps his voice low, even. "Robin's gonna cover the front. I called Keith before I came back here, told him you had food poisoning and needs to leave early. He's a dick but he said fine."
"You didn't have to—"
"I know. But also you look like you're gonna puke or pass out, so." Lucas shrugs. "Rather you do that somewhere that's not a retail job."
Steve makes a sound that might be a laugh or might be nausea. His hand tightens on the ice pack.
"Do you need—" Lucas stops, recalibrates. Not what does Steve need, because Steve won't answer that honestly. "I'm going to get you some water. Stay here."
He's back in ninety seconds with a cup of water from the break room sink and the bottle of ginger chews. Steve's exactly where Lucas left him, but his breathing's gone shallow and fast. Warning sign. Lucas has seen this progression before - the way distress spirals, how pain feeds into panic feeds into more pain.
"Hey." Lucas sits back down, closer this time. "You're okay. Just breathe."
"Can't—" Steve's hand moves vaguely, gesturing at his head, his throat. The words aren't connecting right, Lucas can tell. The aphasia thing Steve mentioned once, embarrassed, after Lucas asked why he sometimes stopped mid-sentence and looked terrified.
"You don't have to talk. I'm just gonna sit here, okay? You don't have to do anything."
Steve nods. His eyes squeeze shut.
Lucas learned this at Max's bedside: sometimes the best thing you can do is stay. Just be a presence, steady and calm, like an anchor in dark water. He learned which silences mean I need space and which ones mean please don't leave. Right now, with Steve's breathing still too quick and his shoulders rigid with tension, Lucas knows it's the second kind.
So he stays.
He talks, eventually, when the silence starts to feel too heavy. Quiet things, unimportant things. How basketball practice is going. The B-minus he got on his history test. The way Max laughed when he told her about Mike's latest campaign disaster during his visit yesterday. He doesn't expect Steve to respond, and Steve doesn't, but the breathing starts to slow. Starts to even out.
"Water," Lucas says after a while, holding out the cup. "Small sips."
Steve manages two before he has to stop, hand shaking enough that Lucas takes the cup back before it spills.
"You good, or do you need the trash can?"
Steve shakes his head, then immediately looks like he regrets the movement. "No. Maybe. Fuck."
Lucas gets the trash can anyway, sets it within reach. Watches as Steve curls tighter into himself, the ice pack now pressed against his forehead.
"Robin's got the front," Lucas says again, because sometimes in the bad moments you need to hear the same reassurances multiple times. "Store's covered. No one's gonna bother you. You can just sit here as long as you need."
"Thanks," Steve whispers. Then: "Lucas. Thank you. For—" The words tangle, won't come. His face twists with frustration.
"I know," Lucas says simply. "You don't have to say it."
Another ten minutes pass. Steve's breathing stays steady but his face has gone gray-pale in the dim light, the kind of pale that means nausea's winning. Lucas shifts the trash can a little closer.
"If you're gonna throw up, it's fine," he says, matter-of-fact. "I've seen worse."
Steve makes a sound that might be a laugh. "Hospital with Max?"
"Hospital with Max," Lucas confirms. "Trust me, nothing grosses me out anymore."
It's meant to be reassuring, but something in Steve's expression shifts. Crumples a little.
"She okay?" Steve asks. "Max. Is she—today was she—"
"She's good. She's great, actually. Kicked my ass at gin rummy even though her hands are still shaky." Lucas keeps his voice light. "Told me to tell you to stop being a hero and accept help, actually. Her words."
"She didn't—"
"No, but she would've if I'd told her. Which I'm not going to, because you'll tell me not to, and then we'll argue, and that seems like a lot of energy neither of us wants to spend right now."
Steve's quiet for a moment. Then: "You're kind of a smartass."
"Learned from the best."
Another silence, but it's gentler this time. Lucas glances at his watch - they've been back here almost thirty minutes. Robin will be fine out front; she's probably reorganized the entire romance section by now, her nervous energy redirected into alphabetization.
"The thing about migraines," Lucas says, slow and careful, "is that they're not like a broken bone or whatever. You can't just push through them. Trying to just makes it worse."
"I know—"
"No, I mean—" Lucas stops, tries to find the right words. "Max tried to push through stuff all the time. After Billy. After everything. She'd say she was fine when she wasn't, and I'd believe her because I wanted to believe her, and then—" His throat tightens. "And then everything that happened, happened. And now I know that sometimes 'I'm fine' just means 'I don't want to talk about how I'm not fine.'"
Steve's very still beside him.
"So when you say you're fine, and I can see you're not, I'm not gonna just believe you anymore," Lucas continues. "Not because I think you're lying. But because I learned what happens when people don't let other people help them."
The words hang in the air between them. After a moment, Steve's hand finds Lucas's shoulder, squeezes once. Can't manage words right now, Lucas knows, but the gesture says enough.
"Okay," Steve breathes out.
"Okay?"
"Okay. I'm—it's bad. It's a bad one. And I—" Steve swallows hard. "I can't drive like this. Everything's too—the light's all wrong and I can't—words are—"
"I know. It's okay." Lucas is already planning: call his parents, explain he's helping a friend, see if his dad can pick them both up, get Steve home. His mom will understand; she always does. "We'll figure it out. Robin and I will figure it out."
"You don't have to—"
"Max would tell you you're being stupid," Lucas says again, and this time Steve's laugh is a little more real.
"She really would."
The door cracks open and Robin peers in. "How are we doing?"
"Need to get him home," Lucas says. "He can't drive."
"Obviously. I already called his house, no answer, so I called Nancy at the library and she's leaving now." Robin crouches down beside them. "Keith's here covering my shift. I told him Steve has a migraine and he actually looked almost sympathetic, which was weird. Apparently his mom gets them."
Steve makes a sound of protest that Robin talks right over.
"Don't even start. You drove me to the ER when I had appendicitis and sat in that shitty waiting room for six hours. You get a ride home for a migraine." She looks at Lucas. "You good here for a minute while I grab his stuff?"
"Yeah."
When she's gone, Steve slumps a little more against the wall. The ice pack's gone warm; Lucas takes it and swaps it for the second one, still cold. Steve accepts it without argument, which is how Lucas knows this is really bad - Steve always argues.
"Don't have to stay," Steve mumbles. "Nancy's coming. You can go."
"Do you want me to go?"
A pause. Then, quietly: "No."
"Then I'm staying."
It's simple as that. Lucas learned this too: sometimes people need permission to want help. Need someone to stay not because they have to but because they choose to.
Nancy arrives twelve minutes later, slightly breathless, her library badge still clipped to her sweater. She takes one look at Steve and her expression goes soft and determined in equal measure.
"Okay," she says, efficient but gentle. "Let's get you up. Lucas, can you get his other side?"
Together they get Steve vertical, though he sways dangerously and has to stop halfway, breathing hard. Lucas grabs the trash can just in case, but Steve keeps it together, jaw clenched with effort.
The walk to Nancy's car is slow. Steve keeps his eyes closed most of the time, letting Nancy and Lucas guide him. When they get him into the passenger seat, he curls into himself immediately, forehead against his knees.
"Thank you," Nancy says to Lucas, quiet and sincere. "Really. I—thank you for calling."
"Yeah, of course."
She hesitates, then adds: "You're good at this. At knowing what people need."
Lucas shrugs, uncomfortable with the praise. "Just paying attention."
"That's the same thing," Nancy says gently.
Robin appears with Steve's jacket and keys, hands them to Nancy, then turns to Lucas. "You need a ride home?"
"Nah, I can bike. It's not far."
"You're sure?"
"Yeah. Tell Steve—" Lucas stops. "Tell him Max says hi."
Robin's smile is understanding. "I will."
Lucas watches Nancy's car pull away, Steve's silhouette barely visible in the passenger seat, hunched and small. Then he heads back inside to help Robin close up, turning the lights back on, returning everything to its proper place.
His backpack still has the ginger chews and earplugs in it. He'll bring them again next time. Because there will be a next time - migraines are often chronic, Dustin explained once in excruciating detail, which means they come back. Which means Steve will need help again.
And Lucas will be there.
It's not about fixing things, he learned. Sometimes you can't fix things. Sometimes brains don't wake up when they're supposed to, and sometimes heads hurt for no good reason, and sometimes all you can do is sit in the dark and wait for it to pass.
But waiting with someone - that matters. That changes things.
That's what Max would want him to do. What Steve did for him, driving him to the hospital day after day, waiting in uncomfortable chairs, being present even when there was nothing to be done but be present.
"You okay?" Robin asks, watching him sort returned tapes with unusual quietness.
"Yeah," Lucas says. "I'm good."
And he is. He's tired, and worried about Steve, and thinking about Max in her hospital bed learning to hold playing cards again with shaking hands. But he's good. He knows how to help now. He knows how to stay.
That's something.
The next day, Lucas stops by Steve's house after school. Nancy answers the door, hair pulled back, looking tired but calm.
"He's doing better," she says before Lucas can ask. "Still hurts, but the worst passed around midnight. He's sleeping now."
"Okay. Good." Lucas shifts his backpack. "I just wanted to drop this off."
He hands her a paper bag. Inside: more ginger chews, a new cold pack, the wraparound sunglasses, and a mixtape Lucas made last night with all quiet songs, nothing with high-pitched synthesizers or sudden loud parts.
Nancy looks in the bag, then back at Lucas, her eyes suspiciously bright.
"He's lucky to have you," she says.
"We're lucky to have each other," Lucas corrects. "That's how this works."
"Yeah," Nancy says softly. "Yeah, it is."
Lucas bikes home in the late afternoon sun, thinking about hospital rooms and dark break rooms and how love sometimes looks like sitting quietly in uncomfortable places. How family isn't always the people you're born to, but the people who learn your warning signs and pack emergency supplies and stay even when staying is hard.
Max is going to love this story when he tells her tomorrow. She'll probably make fun of him for being sappy about it, then squeeze his hand three times under the hospital blanket where no one can see.
I know, the squeeze says. Me too. Thank you.
Lucas squeezes back: Always.