第1話: The Body Double身代わり

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There were many places Vesper Lane would rather have been than standing in front of a twelve-foot gilded mirror reciting etiquette rules to herself like a malfunctioning debutante doll.

A cemetery. A dentist’s chair. That weird hot yoga class she once signed up for thinking it was just stretching. All preferable to this.

But no. Somehow, due to what she was 98% sure was a mailing list glitch—and 2% sure was her mother's doing from beyond the grave—Vesper had been invited to the most exclusive networking gala in the Greater London area: the Alcott Club's Annual Winter Soirée.

Also known as: hell in silk.

She cleared her throat and dabbed at her already immaculate lipstick with a linen napkin someone had probably embroidered by hand for six hundred pounds. Her reflection looked faintly terrified.

“Rule Number One,” she whispered to herself, smoothing the invisible crease in her satin dress, “If ever you find yourself in a crowded ballroom, never scream. Even when discovering a corpse. Decorum must always precede distress.”

This was, in fact, a real entry in Vesper’s Etiquette Handbook, a document she had compiled and updated since the age of eleven, when she first discovered that feelings were often far less useful than formalities.

She inhaled. Straightened her spine. Smiled—not too wide, not too forced, just the right blend of vaguely polite and entirely uninterested.

It was time to mingle.

The Alcott Club was the sort of place that made you feel like you had to apologize for breathing. It was all antique chandeliers, parquet floors that whispered underfoot, and waiters with jawlines sharper than their canapés. Vesper moved through the room like a dignified ghost, politely declining conversation and prosecco in equal measure.

Networking was not her forte. She was an etiquette coach, for God’s sake, not a social butterfly. Her idea of mingling involved a clipboard and a lecture on the dangers of overusing exclamation points in emails.

She spotted a man in a velvet tuxedo discussing crypto with a woman wearing a tiara and carrying a dog in a purse. The dog had more poise than either of them.

She pivoted.

Instead, she found herself drifting toward the fountain in the center of the ballroom, a marble monstrosity with cherubs spitting water and florals artfully strewn around its base. It was quieter here. Less dangerous.

She counted to five. Composed herself.

And then the chandelier exploded.

Well, not exploded exactly. It dropped.

There was a sound like God clearing His throat, followed by a crack, a scream, and then a shattering crash that echoed through the entire hall.

Glass rained down in delicate, murderous shards. The room plunged into darkness except for emergency sconces that flickered like haunted candles. People screamed. Someone fainted. Someone else started filming.

And in the stunned hush that followed, Vesper—her ears ringing and heart thudding in her chest—turned slowly toward the fountain.

There, half-submerged in the shallow pool, was a woman. Face-down. Dressed in the same shade of moonlight silver as Vesper’s own gown. Hair swept up in the same sleek chignon.

A cold, crawling dread seized her.

The woman in the fountain looked exactly like her.

The interrogation began precisely seventeen minutes later.

By that point, paramedics had arrived, the chandelier debris had been roped off with something distressingly close to gold velvet, and Vesper had been wrapped in a blanket, as if she were a character in a BBC drama who’d just survived a minor disaster.

The police were trying to be kind, but there’s only so kind you can be when you’re questioning a woman about her own murder.

“I swear,” Vesper said, lips trembling from shock and possibly the air conditioning, “I didn’t kill myself.”

There was a long pause. Detective Inspector Jules Calder raised one skeptical eyebrow. “Right. Because that would be… inconvenient?”

“No. Because I’m not dead,” Vesper snapped, then immediately winced. “Apologies. That was rude. I'm just—it’s been a long evening.”

The detective didn’t blink. “Let’s start from the top. Your name?”

“Vesper Lane. I’m an etiquette consultant.”

“Is that like… manners for hire?”

“Sort of.” She swallowed. “I mostly work with private clients. Diplomats. Brides with controlling mothers. Occasionally small business owners who yell at waiters and need reconditioning.”

“And you were here… how?”

“I was invited.” Her voice pitched. “Well, not invited exactly. I think it was an email error. I never RSVP’d, but the confirmation came, and I thought—maybe someone recommended me? I didn’t want to be rude by not showing up.”

“Of course not,” the detective muttered. “God forbid.”

She ignored the sarcasm. “Anyway, I arrived, I was trying to blend in, and then the chandelier—” “—fell.”

“Yes.”

“And you saw the body.”

“In the fountain. Yes. She was wearing the same dress I was. Her hair was styled the same way. I thought…” She trailed off, then whispered, “I thought it was me.”

A silence fell.

The detective scribbled something in his notebook. “Miss Lane, did you know the deceased?”

“No,” she said, too fast. “I’ve never seen her in my life. Except in the mirror, I suppose.”

The officer standing behind the detective leaned in to murmur something in his ear. Calder nodded.

Then he turned back to Vesper, expression unreadable.

“We’ll need to confirm your identity, of course. Just a routine measure.”

“Routine.” She laughed shakily. “Of course. Perfectly routine to check if I’m myself.”

He didn’t laugh. “Until we can ID the body and notify the family, we’d prefer you not leave town.”

“I live in Wandsworth.”

“Even better. Stay local.”

He handed her a card. “If you think of anything else—anything at all—call me.”

She took it with gloved fingers, nodding mechanically.

As she turned to go, she caught sight of the fountain once more. The body had been covered. The water was tinged with red now, swirling like ruined rose petals. Someone had dropped a silk glove on the marble steps.

It looked exactly like hers.

Back in her flat, Vesper peeled off the gown like it was made of fire and changed into flannel pajamas printed with tiny owls. It felt ridiculous—absurd—to be so normal after something so unthinkable.

She made tea. Burnt her toast. Stared at the framed picture on the wall of her and her mother in matching hats at the Queen’s Garden Party. Her mother would’ve hated the evening.

“Too gauche,” she’d have sniffed. “And chandeliers are just accidents waiting to happen. Remember Naples?”

Vesper wished she could remember Naples. She wished her mother were still around to offer pointed criticisms and over-steeped Earl Grey.

Instead, she had a corpse in a fountain who looked just like her.

And no answers.

She tried to sleep. She really did. But her brain had other plans.

It replayed the crash, the scream, the glimpse of that familiar yet unfamiliar profile sinking into the water. The way her own reflection had flickered in the mirror, as if foreshadowing something terrible.

She eventually gave up and got out of bed, turning on every light in the flat.

On her desk sat her etiquette manual—hand-bound, aged parchment, ribbon markers. She flipped it open.

Rule #17: When faced with the inexplicable, respond with civility. Panic is contagious. Poise is power.

She’d written that the week her father left. At thirteen.

It had felt true then. It felt hollow now.

The next morning, someone knocked on her door at precisely 6:47 AM.

Vesper nearly dropped her teacup.

She peeked through the peephole.

A man stood there, disheveled in that way that felt intentional. Hair like a tousled raven, trench coat, two-day stubble. Either a detective or someone who read too many detective novels.

“Miss Lane?” he called through the door. His voice was low and gravel-edged. “I’m not here to arrest you.”

“That’s not especially reassuring,” she said, but opened the door anyway.

He offered a crooked smile and a card.

Caspian Locke – Private Investigations. Discreet. Efficient. Judgment-Free.

She raised an eyebrow. “Judgment-free?”

“It’s a motto. Not a guarantee.”

“Ah.”

“I heard about what happened. I think you’re in trouble.”

“I gathered that from the dead body wearing my face.”

He glanced past her into the flat. “Mind if I come in?”

“I do, actually.” She folded her arms. “What kind of PI shows up uninvited at dawn?”

“The kind who’s been following a case that just got a whole lot weirder.”

Vesper hesitated.

Then stepped aside.

Because if there was one thing her mother never prepared her for, it was what to do when someone tried to kill your doppelgänger—and you were the one still alive to tell the tale.

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  • 一番良かった場面はどこですか?
  • 次の章を読み続けたいと思いますか、それともやめますか?その理由は?
  • 注意が逸れた場面や流し読みした場面はどこですか?
  • 混乱した部分はどこですか?

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