The kitchen wasn't his anymore.
That was the first thing Justin noticed, coming downstairs the next morning to find the counter rearranged — his mother's old mug, the chipped blue one nobody else had touched in eight months, pushed aside to make room for a French press he didn't recognize, and a note on a torn corner of paper held down by the salt shaker:
Out of coffee filters. Improvised. Sorry.
He stood there a moment longer than the situation strictly required, looking at the borrowed mug rotation, the unfamiliar press, the small evidence of someone else's morning already underway somewhere in the house.
It wasn't a big thing. It shouldn't have felt like a big thing.
But his routine — the careful, repetitive architecture he'd built over eight months specifically because it required no thought, no surprises, nothing that could catch him off guard — had quietly acquired a second occupant, and apparently nobody had consulted him about it.
He found he didn't entirely mind.
That bothered him more than the coffee did.
He grabbed a clean towel from the hall closet and headed for the shared bathroom out of pure habit, the same eight-month-deep muscle memory that had never once needed to account for anyone else's schedule. The door wasn't locked. It usually wasn't this early — Jessica, from what little pattern he'd gathered over the past few days, tended to sleep later than he did, and the bathroom in the gray hour before eight had always belonged to him alone.
He pushed the door open without knocking.
The room was full of steam, fogged glass and warm, humid air, the shower running behind the frosted panel of the stall — and a shape moving behind it, blurred to nothing but silhouette and motion, unmistakably not him.
"Oh — s**t—"
He had the door shut again before the second word finished leaving his mouth, heart slamming, already three steps back into the hallway with his hand still gripping the doorknob like it might somehow undo the last four seconds.
"Justin?"
Her voice, muffled through the door, sounded more startled than angry. The water shut off.
"I am so sorry — I didn't know. I usually have the bathroom this early. I didn't even think to check—"
"It's fine!" A pause. Rustling. The particular sound of someone reaching for a towel faster than strictly necessary. "It's — I mean, nothing happened. The door was just steamed up. You couldn't have seen anything."
"I wasn't trying to—"
He stopped himself, aware he was making it worse by protesting too hard.
"I'll just use the downstairs bathroom. Sorry. Again."
He retreated down the hall with his face burning, towel still uselessly in hand, and stood at the top of the stairs for a moment doing the specific kind of recalibration that came from having your entire morning routine upended in under ten seconds.
It hadn't been anything, technically — a blurred shape through fogged glass, gone almost before his brain had registered it as a shape at all — and yet something about it sat in his chest anyway. Not shame exactly. Something closer to the same unwelcome awareness he'd felt outside her door the first night: the sense of a boundary that kept proving flimsier than either of them wanted to admit.
She found him twenty minutes later in the kitchen, hair still damp, wrapped in a cardigan three sizes too big, her expression carefully neutral in a way that suggested she'd spent the walk downstairs deciding exactly how to play this.
"So," she said. "New house rule. Knocking."
"Yeah. I deserved that."
He didn't look up from his coffee — her coffee, technically, made in her unfamiliar press, and he drank it anyway because making a separate pot felt like a stupider hill to die on than the one he was already standing on.
"For what it's worth, I genuinely saw nothing. Steam. A vague human-shaped blur. I could've walked in on a ghost and gotten the same amount of information."
"Comforting."
But there was a thread of humor under it now, the tension easing slightly, like she'd decided — generously, he thought — not to make this any more uncomfortable than it already was.
"I'm adding a lock-the-door reminder to my phone. Clearly the honor system isn't cutting it."
"Probably wise."
She poured herself the last of the coffee and leaned against the counter in the same spot she'd occupied the night of the kitchen conversation.
For a moment neither of them said anything, the awkwardness of the morning settling into something more like a shared joke they hadn't quite agreed to find funny yet.
"You know," she said eventually, "you didn't have a roommate situation before me, right? Just you and your dad rattling around in this enormous house."
"Pretty much. Eight months of very efficient, very lonely scheduling. I knew exactly when the bathroom was free, exactly when the kitchen was free, exactly how long I could go without talking to another human being if I planned it right."
He turned the mug in his hands.
"Turns out that whole system was built on an assumption that's no longer true."
"Sorry for the unwanted change."
"Don't be."
He said it before he'd fully thought it through and found, somewhat to his own surprise, that he meant it.
"It's annoying, honestly, in the way change always is. But it's not bad. The house was too quiet before. I didn't notice how quiet until it wasn't anymore."
Something softened behind her eyes — not quite a smile, but close, the particular warmth she doled out rarely enough that Justin had started noticing every time it appeared.
"That's the nicest thing you've said to me since I got here."
"Don't get used to it. I have a reputation."
"Sad and sarcastic. We've covered this."
She finished her coffee, set the mug in the sink, and something in her posture shifted — the easy morning warmth folding back into the more careful, watchful version of herself he'd seen at dinner that first night.
"I'm going to look around the house today. Properly. Not just the garage — the whole thing. If there's more like that photograph, I want to find it before your dad gets home."
"You want help?"
"I want you to keep him distracted if he comes back early." A beat. "And yes. Help too. But mostly the distracting part. You're better at deflecting him than I am. You've had eighteen years of practice."
"Lifetime of training, finally paying off."
Justin set his own mug down, the morning's awkwardness fully receded now, replaced by the steadier, more purposeful current that had been running under everything since the garage.
"Where do you want to start?"
"His study. It's locked, which means it's probably the most honest room in this house."
She glanced toward the hallway, toward the closed door at the far end that Justin himself had never once been invited through.
"And then the basement, eventually. But the study first. Smaller, faster to search, less likely to get us caught."
He thought about his father's study — the one room in the house that had remained entirely his father's domain even before Claire died, locked more out of habit than secrecy, as far as Justin had ever known. Full of nothing more interesting than tax documents and old client files, as far as he'd ever bothered to imagine.
Standing in the kitchen with Jessica's quiet determination radiating off her like heat, he wasn't nearly as certain of that anymore.
"He keeps a spare key in the drawer by the front door," Justin said slowly. "Under the flashlight. I've seen him use it when he's locked himself out."
Jessica's eyes sharpened with the same focused look she'd had over the photograph in the garage.
"Then let's start there."
They moved together toward the front hall, past the stopped clock keeping its same silent vigil, past the crooked photograph of three young people laughing on a porch that no longer felt like background wallpaper to either of them.
Justin found the key exactly where he remembered it, cool and small in his palm, and held it up between them like something newly dangerous.
"Last chance to decide we don't actually want to know."
Jessica looked at the key, then at him, something resolute settling over her face.
"I stopped having that option the day I found the letter," she said.
Open it.