He was cold-eyed over the bloody toilet paper, furious with her for humiliating him on the dance floor, livid with Martin for hitting him. There was nothing romantic in his invitation to board the plane. He was proposing a summit, a chance for calm discussion. If, after serious consideration, they came to the conclusion that the marriage was a mistake, they would come home at the end of the fortnight, make a joint announcement, and go their separate ways.

And at that moment, the wretched Robin, arm throbbing, shaken to the core by the feelings that had risen inside when she had felt Strike’s arms around her, knowing that the press might even now be trying to track her down, had seen Matthew, if not as an ally, at least as an escape. The idea of getting on a plane, of flying out of reach of the tsunami of curiosity, gossip, anger, solicitude and unsought advice that she knew would engulf her as long as she remained in Yorkshire, was deeply appealing.

So they had left, barely speaking during the flight. What Matthew had been thinking through those long hours, she had never inquired. She knew only that she had thought about Strike. Over and again, she had returned to the memory of their embrace as she watched the clouds slide past the window.

Am I in love with him? she had asked herself repeatedly, but without reaching any firm conclusion.

Her deliberations on the subject had lasted days, an inner torment she could not reveal to Matthew as they walked on white beaches, discussing the tensions and resentments that lay between the two of them. Matthew slept on the living-room sofa at night, Robin in the net-draped double bed upstairs. Sometimes they argued, at other times they retreated into hurt and furious silences. Matthew was keeping tabs on Robin’s phone, wanting to know where it was, constantly picking it up and checking it, and she knew that he was looking for messages or calls from her boss.

What made things worse was that there were none. Apparently Strike wasn’t interested in talking to her. The hug on the stairs, to which her thoughts kept scampering back like a dog to a blissfully pungent lamppost, seemed to have meant far less to him than it had to her.

Night after night, Robin walked by herself on the beach, listening to the sea’s deep breathing, her injured arm sweating beneath its rubber protective brace, her phone left at the villa so that Matthew had no excuse to tail her and find out whether she was talking secretly to Strike.

But on the seventh night, with Matthew back at the villa, she had decided to call Strike. Almost without acknowledging it to herself, she had formulated a plan. There was a landline at the bar and she knew the office number off by heart. It would be diverted to Strike’s mobile automatically. What she was going to say when she reached him, she didn’t know, but she was sure that if she heard him speak, the truth about her feelings would be revealed to her. As the phone rang in distant London, Robin’s mouth had become dry.

The phone was answered, but nobody spoke for a few seconds. Robin listened to the sounds of movement, then heard a giggle, and then at last somebody spoke.

“Hello? This is Cormy-Warmy—”

As the woman broke into loud, raucous laughter, Robin heard Strike somewhere in the background, half-amused, half-annoyed and certainly drunk:

“Gimme that! Seriously, give it—”

Robin had slammed the receiver back onto its rest. Sweat had broken out on her face and chest: she felt ashamed, foolish, humiliated. He was with another woman. The laughter had been unmistakably intimate. The unknown girl had been teasing him, answering his mobile, calling him (how revolting) “Cormy.”

She would deny phoning him, she resolved, if ever Strike asked her about the dropped call. She would lie through her teeth, pretend not to know what he was talking about…

The sound of the woman on the phone had affected her like a hard slap. If Strike could have taken somebody to bed so soon after their hug—and she would have staked her life on the fact that the girl, whoever she was, had either just slept with Strike, or was about to—then he wasn’t sitting in London torturing himself about his true feelings for Robin Ellacott.

The salt on her lips made her thirsty as she trudged through the night, wearing a deep groove in the soft white sand as the waves broke endlessly beside her. Wasn’t it possible, she asked herself, when she was cried out at last, that she was confusing gratitude and friendship with something deeper? That she had mistaken her love of detection for love of the man who had given her the job? She admired Strike, of course, and was immensely fond of him. They had passed through many intense experiences together, so that it was natural to feel close to him, but was that love?

Alone in the balmy, mosquito-buzzing night, while the waves sighed on the shore and she cradled her aching arm, Robin reminded herself bleakly that she had had very little experience with men for a woman approaching her twenty-eighth birthday. Matthew was all she had ever known, her only sexual partner, a place of safety to her for ten long years now. If she had developed a crush on Strike—she employed the old-fashioned word her mother might have used—mightn’t it also be the natural side effect of the lack of variety and experimentation most women of her age had enjoyed? For so long faithful to Matthew, hadn’t she been bound to look up one day and remember that there were other lives, other choices? Hadn’t she been long overdue to notice that Matthew was not the only man in the world? Strike, she told herself, was simply the one with whom she had been spending the most time, so naturally it had been he onto whom she projected her wondering, her curiosity, her dissatisfaction with Matthew.

Having, as she told herself, talked sense into that part of her that kept yearning for Strike, she reached a hard decision on the eighth evening of her honeymoon. She wanted to go home early and announce their separation to their families. She must tell Matthew that it had nothing to do with anybody else, but after agonizing and serious reflection, she did not believe they were well suited enough to continue in the marriage.

She could still remember her feeling of mingled panic and dread as she had pushed open the cabin door, braced for a fight that had never materialized. Matthew had been sitting slumped on the sofa and when he saw her, he mumbled, “Mum?”

His face, arms and legs had been shining with sweat. As she moved towards him, she saw an ugly black tracing of veins up the inside of his left arm, as though somebody had filled them with ink.

“Matt?”

Hearing her, he had realized that she was not his dead mother.

“Don’t… feel well, Rob…”

She had dashed for the phone, called the hotel, asked for a doctor. By the time he arrived, Matthew was drifting in and out of delirium. They had found the scratch on the back of his hand and, worried, concluded that he might have cellulitis, which Robin could tell, from the faces of the worried doctor and nurse, was serious. Matthew kept seeing figures moving in the shadowy corners of the cabin, people who weren’t there.

“Who’s that?” he kept asking Robin. “Who’s that over there?”

“There’s nobody else here, Matt.”

Now she was holding his hand while the nurse and doctor discussed hospitalization.

“Don’t leave me, Rob.”

“I’m not going to leave you.”

She had meant that she was going nowhere just now, not that she would stay forever, but Matthew had begun to cry.

“Oh, thank God. I thought you were going to walk… I love you, Rob. I know I fucked up, but I love you…”