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"We do the top floor first because that's where the physics stuff is and it's the best, and everybody else is dumb enough to start at the bottom, so it'll be empty," Chris explained his museum system as if it were law. Theo's hand fisted in the hem of his shirt. "Then we work down. Space on four, body stuff on three, the earthquake room on two, water tables on one for when Theo melts down."
"Not gonna melt down," Theo said, with the doomed confidence of a four-year-old who was absolutely going to melt down.
"You melted down at the aquarium."
"The 'quarium was loud."
"Sure, buddy."
Grace let herself be led, which was nice. Having her own personal L.A. tour guide had been fun, and Chris took his job very seriously. She was used to being the one who knew where things were and how they worked and where the exits were, an old habit she'd caught from Steve and Danno without really meaning to. There was something restful about handing the map to a fifteen-year-old who ran the operation the same way Buck would if you handed him a clipboard. She'd flown out for a long weekend, no occasion, just to see them, and when Buck and Eddie got caught up on a shift, she claimed the boys for the day, and now here she was following Christopher Diaz through a science museum while he narrated.
"He gets this from Buck," she stage-whispered to Theo.
"I heard that," Chris said, not turning around. "And obviously."
As promised, the earthquake room was on two, and it was exactly the kind of thing a hands-on museum builds to trap children: a raised platform rigged to simulate seismic activity, a wall of screens explaining fault lines, and a whole interactive corner about what to do when the ground moves. Chris stopped in front of it with a strange expression, fond and far-off.
"This was always my favorite. When I was little, I used to make Buck explain earthquakes to me constantly. Like, relentlessly. Poor guy probably knows more about seismology than any other firefighter in the state because of me."
"Why earthquakes?" Grace asked, though something in her already suspected the shape of the answer.
Chris shrugged, watching Theo clamber up onto the simulator platform. "There was one the day I met him. Not too bad for me, but Dad and Buck spent all day dealing with it, and Dad couldn't get to school till really late, so Buck offered to drive him. They show up, and there's this giant goofy guy I've never met, and he talked to me about earthquakes the whole drive home so I'd stop being scared. Told me earthquakes were the Earth's way of getting the wiggles out. Made it not too scary anymore." He said it lightly. "That was Buck. Picked me up after an earthquake and just never really left."
Grace didn't say anything because her throat had tightened, and because Theo was demanding they all get on the platform.
They were all on the platform when the real one hit.
Later, Grace would never be able to say how she knew immediately that it wasn't the simulator. She just knew, the way your body knows, that the shaking was coming from underneath the programmed shaking, that the low freight-train sound had arrived half a second before the platform's rumble, that the screens on the wall had flickered just before the floor buckled. Not the ride. The building.
"Down," Chris said. Automatic and with zero fear. It reminded Grace of the way Buck said things on calls, when things were bad. Fast and flat. Factual. Chris's hand was already on the back of Theo's neck, guiding him off the platform, and Grace, the adult, the one supposedly in charge, found herself doing exactly what Chris had told her to, because he clearly knew and she clearly didn't.
"Away from the screens, they're gonna come down. Get in the doorway—" Chris was moving them toward the reinforced frame of the exhibit's own entrance, because of course the safest spot in the building seemed to be the entry to the room about what was happening to them. "—we stay low, hold, it always sto—"
The floor let go.
It didn't crack so much as tilt, a whole section of the gallery giving up at once with a sound Grace felt in her sternum. Then they were falling, not far, eight, maybe ten feet, but falling with the world, with chunks of floor and a rain of glass and the earthquake exhibit's own screens, and Grace did the only thing there was time to do, which was throw herself over Theo and take the landing on her side.
Her shoulder hit something. She heard it more than felt it, a pop that sounded wrong deep in the joint, and then a white-hot bolt of pain so total it took the noise with it for a second, and then she was on the floor of somewhere lower and darker, curled around a screaming four-year-old, with her right arm not answering when she asked it to.
"Grace! Theo!—"
"Here." It was dark, and her voice was thin. But Chris wasn't far from her. "We're here, we're okay. I've got him."
The shaking had stopped at least. The after was almost louder than the quake itself. Grace could hear the alarms from somewhere above them. Another kid crying, far off. Dust sifting down through a shaft of emergency light that came from the gap above them, where the floor used to be. They were in a pocket. A hollow of broken concrete and bent rebar and shattered display cases, maybe the size of a small bedroom, roofed over by the collapsed section they'd fallen with. Not buried, but boxed. Grace looked at its walls, the slabs, the twisted metal, and the one high gap letting in light, and understood with total clarity that the three of them were not climbing out of this. Not her with one arm. Not Chris on crutches. Not with Theo. They were in here until someone came in after them.
"Okay," she said, mostly to herself, and then louder, steadier, for the boys. "Okay. Everybody talk to me. Chris?"
"Scraped up." His voice was shakier now, the adrenaline landing. "Cut on my leg, but it's not bad. I lost a crutch, but I'm ok. Grace, your arm—"
"It's fine." It was not fine. She got herself sitting up against a slab, cradling the right arm against her body, and the movement sent another white wave through her that she breathed all the way through with her teeth shut, because Theo's face was six inches from hers and Theo was watching. "It's fine, bud. I just banged it. Come here, let me see you."
Theo had a cut. A small one, a graze across the back of one hand from the glass. Superficial, barely bleeding, the kind of thing that on a normal Tuesday you'd rinse and forget. But Theo was four, and he was in a hole in the ground in the dark, and he had seen his own blood, and he was building toward a scream that would undo all three of them.
So Grace made a decision, the way she'd watched Buck do hundreds of times.
"Oh, hey. Hey. Okay, this is actually great news," she said, bright, reaching left-handed into her bag, the little zip pouch she carried everywhere, stuffed with some of your most basic first aid needs. "You know how lucky you are right now? You got the exact kind of ouchie that I have the best stuff for. Watch this."
"S bleeding," Theo whimpered.''
"I know, buddy, but look. We clean it up—" a wet wipe slid over his hand, gentle, narrating every second of it so as not to surprise him, "— and now the important part, which is you have to choose, because I have three kinds and this is a very serious decision. We've got regular, we've got glow-in-the-dark stars, and we've got, okay, don't freak out, we've got dinosaurs."
Theo's scream stalled out somewhere in his chest. "…Dinosaurs?"
"Little tiny ones. But you gotta really think about it, because this is a big deal and it needs the right one."
Grace watched as little Theo's entire nervous system rerouted from terror towards the profound responsibility of choosing between the glow-in-the-dark stars and dinosaurs, and she caught Chris's eye over Theo's head, and Chris, pale and scraped and holding it together just as much as Grace was, breathed a sigh of relief.
She got the dinosaur Band-Aid on. She made a ceremony of it. She told Theo he was the bravest kid in the whole museum, which was true, and that Chris was the smartest, which was also true, and that the two of them together were going to take excellent care of her while they waited, which was the actual point, because a kid with a job is a kid who isn't spiraling, and she needed both of them to have jobs.
"Here's what we're doing," Chris said, picking it up, catching her play, running the tactical the way she was running the calm. He'd shifted so his back was to the most stable slab and Theo could tuck against him. "We don't wanna move around too much. There's glass everywhere, and we don't wanna touch the walls, either. We're safe here, so we stay put." He pulled out his cell phone from his pocket before looking at Grace. "You got any service?"
Leave it to the teenager to ask the obvious question. She had been so distracted by Theo that her cell phone had been the last thing on her mind. She fumbled around for it, grateful that it was at least stowed away on her left side for easy access. When she laid eyes on it, she groaned.
"Just expensive plastic and glass at this point." She showed the shattered screen to Chris. He was already trying 911 on his phone, but she could hear the error tones from where she was sitting.
"Probably a lot of calls at once. We can try again in a bit. They'll come, though."
"How do you know?" Theo asked quietly.
"Because I know who's coming," Chris said with certainty. "Trust me."
The aftershock came maybe fifteen minutes in, when Theo had finally stopped shaking, and Grace's shoulder had settled into a deep sick throb she was managing one breath at a time.
She heard it before she felt it, the freight-train sound again, smaller, and Chris pulled Theo close to him, and Grace got her good arm around both of them, and the pocket groaned. Dust came down. Something shifted overhead with a grinding shriek and a slab settled six inches closer to them and stopped, and a fresh rain of grit and glass came through the light-gap, and Theo screamed, fully this time, the dinosaur band-aid forgotten, and Grace held on with one arm and her whole body and said into his hair, over and over, the thing she'd heard secondhand.
"The ground's just getting the wiggles out. That's all it is. It's just the ground stretching, and we hold still, and we let it, and it stops. It always stops. It's gonna stop."
And it did.
In the ringing quiet after, Theo was sobbing, but the pocket had held, and Chris was breathing hard, and Grace realized she'd just repeated Buck's words, the ones Chris had said earlier, the ones Buck had used to calm a child in a car nearly a decade ago. She hadn't really decided on it. They'd just been there in case she needed it.
"You okay?" Chris asked her, low, under Theo's crying.
"Peachy."
"Your arm's really bad, isn't it?" He'd been watching her the way she'd been watching Theo. Family trait, she thought to herself. All of them. This constant covert triage of the people they loved.
"It's not great," Grace admitted, quiet, because she figured fifteen had earned honest. "I think it's maybe out of socket, I don't—I don't know what that feels like. It hurts like hell, but it's a problem for another time. Deal?" She glanced at Theo.
"Deal."
She kept it off her face. That was the job now, on top of the other jobs, keeping an injured shoulder off her face so a four-year-old wouldn't add it to his pile. She talked Theo down again. She got him counting things in the pocket to keep his mind busy, how many pieces of glass caught the light, how many times they could hear a helicopter, and she kept her arm still and her voice easy, and she understood that she was doing something she always knew Buck to do. Sanding down the truth to a size that wouldn't scare the people she loved.
She understood it now. It wasn't really a lie. It was a gift you gave with your teeth clenched. She'd owe him an apology when they got out. She'd tell him she finally saw it for what it was.
Theo had gone quiet against Chris, watching her, and after a while, he reached out with his good hand, the one without the dinosaur, and patted her hurt arm as gently as a four-year-old knows how, which was not very, and Grace couldn't quite catch the flinch in time.
"You have an ouchie, too..." Theo said, stricken, like he'd just noticed and was absolutely betrayed she'd been hiding it. "Gracie, you have an ouchie, and you didn't tell me."
"It's a little one." Grace lied.
"You need a band-aid." Theo was already reaching for Grace's pouch with total conviction. "I'll do it. I'll pick a good one for you. You can have the dinosaurs. I'll give you mine—"
That's what broke her. Not the pain. Not the goddamn earthquake. A tiny human sitting across from her trying to give her his coveted dinosaur band-aid. Not really trusting herself to speak in that exact moment, she laid a soft hand on his own and then offered him the first aid kit, which seemed to appease him. He was trying to take care of her. He was doing the thing their family did. The reflex to tend to the person tending you was showing up already fully formed in the smallest one. She let it happen as pride swelled in her chest. Theo peeled a glow-in-the-dark star off the strip and pressed it, very seriously, to the shoulder of her jacket, nowhere near the actual injury, completely useless, the most useful thing anybody had ever done for her.
"There," Theo said, satisfied. "Now it'll get better."
"Yeah, Spiderman. Now it'll get better."
Over Theo's head, Chris was watching her, and his eyes were wet too, and neither of them said anything because they both knew who had taught Theo to love like that. And then, because Theo had gone calm and focused for the first time since the fall, because doctoring Grace had given him something to do that wasn't being scared, Chris very deliberately held up his scraped shin.
"Hey, Theo, I think I need one too. Think it's serious?"
Theo gasped, all business, the museum's newest and most dedicated medic, and set about selecting the correct band-aid with tremendous gravity. And that, it turned out, was the whole answer to the next stretch of waiting: as long as somebody needed a band-aid, Theo was a doctor and not a scared kid stuck in a hole, so somebody always needed a band-aid. Chris's shin. Then Theo discovered a scrape on his own knee that required attention. Then Grace's cheek. Then a spot on Chris's elbow that may or may not have been an actual injury. Around and around, Theo administering each one with the same fierce concentration, narrating his own procedures, telling each of them to be brave, and the little zip pouch got lighter and lighter, dinosaurs and stars and even the plain ones, distributed across three people until all three of them were absurd with it, band-aids on foreheads, and knuckles, and jacket sleeves, a graffiti of care in a collapsed building.
"Okay, Chris needs one more, right here—" Grace started, when Theo's focus flickered toward the dark again.
Theo dug in the pouch, and his face fell. "It's empty."
Grace's stomach dropped, because an empty band-aid pouch meant the game was over and the fear was going to come rushing back in, and she was scrambling for the next distraction, the next job, anything—
And that was when they heard it. Up through the light-gap, filtering down through the alarm-noise: voices. The specific coordinated choreography of a fire crew, calling out, moving room to room, a radio crackling.
Theo's whole face changed, from the tragedy of the empty pouch to the enormous, total relief, and he said, with all of the sincerity of a person raising the single most important logistical concern of the entire disaster:
"I'm really glad Buck's coming. Do you think he has band-aids?"
Grace and Chris both laughed at that, truly, because of course to Theo, rescue meant resupply, because the person digging through a collapsed museum to save their lives was obviously Buck, and more importantly, carrying more dinosaurs and stars.
"Yeah, buddy. I bet he's got a whole truck full."
The priority quickly shifted from waiting to garner attention.
"Down here!" Grace called, as loud as she could, and Chris joined her, and even Theo yelled, three voices going up through the gap all at once into the chaos of a building full of trapped people, and Chris showed Theo how to bang the concrete piece against a piece of metal until a voice above called back, "LAFD, keep making noise. We hear you. Keep talking to me."
A beam of light found the gap. A firefighter's shape leaned over it, big, in full turnout and SCBA, and started talking on the radio, gathering locations of the rest of his team and who was available, about a void space with three victims, working out a way down. The beam of light hadn't settled on any one of them yet, but Chris's whole body changed.
"That's Buck," he breathed. No question in it. none. The man was head to toe in gear with a mask over his face; Grace genuinely couldn't have told Buck from Eddie from a stranger under all of it, and neither of the boys had picked his voice out of the noise either. But Chris didn't need the voice. Chris knew, the way he'd known since the beginning, who came after an earthquake.
"DAD!"
The shape above the gap went still.
Grace watched it happen, watched the firefighter above her start to turn, actually start to redirect, the beam swinging like he was looking for the kid's real father, like the word had bounced off him and gone hunting for where it belonged, because, naturally, his first instinct was that Chris meant Eddie, that some other man was the Dad being called down into a hole.
Except she'd heard the radio thirty seconds ago, heard him verify his team, and so had he. He knew where every member of the 118 was in this building. He knew Eddie was on the north stairwell, two floors up, because he had just checked in, right as Chris had put it all together.
Grace watched Buck understand that there was no other firefighter this word could be for.
Watched him understand it was his.
"Chris?" His voice cracked through the mask, and then he was moving, fast, urgent, coordinating the descent, and it took a few minutes that felt like an hour, a ladder lowered, another firefighter bracing, Buck coming down into the pocket in a shower of grit and dropping the last few feet and shoving his mask up and off, and it was Buck, of course it was Buck, soot-streaked and wild-eyed. The look of a man who had been digging through a disaster with no idea his kids were underneath it.
His hands were already moving. Theo, up into one arm. Chris, in another. And then Grace in front of him. She watched him clock the shoulder in a quarter second, watched him see not just the injury but the way she was holding it, hiding it. The careful stillness of a person managing pain so it wouldn't show.
"Grace."
"I'm fine. We're fine."
And then his arms were around all of them, and for a moment, he just held on.
"I knew you'd come," Chris said into his shoulder.
"Yeah, bud. I've got you. I'm here."
"Chris said we just had to wait and you'd be here. That you always come back." Theo piped up, and that was what made Buck pause. Grace watched it all land, all the tiny little puzzle pieces of the last couple of minutes fit together in front of Buck's eyes at once. The Dad the kid had thrown without a flicker of doubt through a mask that hid everything, and the always come back said not about surviving, not about coming from the water or war or the brink of death, but about showing up, about being the one who comes when the ground breaks. Chris had been counting on him to come since he was eight, had built a whole certainty out of it, and his youngest son had just parroted it back to him as if it was just some fixed fact of the universe he had been taught. The sky is blue. The ground moves. Buck comes back. He's Dad. Simple.
Buck couldn't say anything for a moment.
"Yeah," he finally managed, barely, pressing his mouth to the top of Chris's head, then Theo's, his arm still tight around Grace's good side. "Yeah. Always. Every single time. You wait right where you are, and I will always come get you. All of you. I promise."
"We know," Chris said, easy, already leaning back into him.
"I got a band-aid," Theo reported, holding up his hand with the dinosaurs. "Gracie had them. And I gave her a star 'cause she has an ouchie she didn't tell anybody about."
Buck looked at the useless little glowing star stuck to the shoulder of Grace's jacket, three inches from a dislocated joint, and Grace watched him understand the whole hour from that one sticker, the fall and the fear and the way these three had held each other together in the dark with nothing but a wallet first-aid kit and the knowledge that Buck would come for them.
"That was real smart, giving her a star," he told Theo, his voice rough. "You did such a good job helping out. You're gonna have to tell Eddie you're coming for his job, Mr. Medic."
Theo was beaming.
They got them out carefully, one at a time, up the ladder and into waiting hands, and there was a bus waiting for Grace and a stuffie waiting for Theo, and Eddie was coming down the north stairwell at a dead sprint the second the words reached him. There'd be a hundred things to handle, and hospitals, and the long boring aftermath of a bad day.
But for the length of one more minute, there was just the four of them in a shaft of light in a broken building, a kid on his father's hip and a boy who'd finally named something he'd been thinking for years, and an unspoken promise no one ever thought for a second to doubt.
The ground shakes. And Buck comes back.
He always comes back.