Alternatively, of course, Strike had gone to Charlotte and she had turned him away. In that case, the matter of his current whereabouts became a matter of more pressing, less personal concern. What if he had gone out, unchecked and unprotected, hell-bent on intoxication again? Robin’s busy fingers slowed and stopped, mid-sentence. She swivelled on her computer chair to look at the silent office telephone.

She might well be the only person who knew that Cormoran Strike was not where he was supposed to be. Perhaps she ought to call him on his mobile? And if he did not pick up? How many hours ought she to let elapse before contacting the police? The idea of ringing Matthew at his office and asking his advice came to her, only to be swatted away.

She and Matthew had rowed when Robin arrived home, very late, after walking a drunken Strike back to the office from the Tottenham. Matthew had told her yet again that she was naive, impressionable and a sucker for a hard-luck story; that Strike was after a secretary on the cheap, and using emotional blackmail to achieve his ends; that there was probably no Charlotte at all, that it was all an extravagant ploy to engage Robin’s sympathy and services. Then Robin had lost her temper, and told Matthew that if anybody was blackmailing her it was he, with his constant harping on the money she ought to be bringing in, and his insinuation that she was not pulling her weight. Hadn’t he noticed that she was enjoying working for Strike; hadn’t it crossed his insensitive, obtuse accountant’s mind that she might be dreading the tedious bloody job in human resources? Matthew had been aghast, and then (though reserving the right to deplore Strike’s behaviour) apologetic; but Robin, usually conciliatory and amiable, had remained aloof and angry. The truce effected the following morning had prickled with antagonism, mainly Robin’s.

Now, in the silence, watching the telephone, some of her anger at Matthew spilled over on to Strike. Where was he? What was he doing? Why was he acting up to Matthew’s accusations of irresponsibility? She was here, holding the fort, and he was presumably off chasing his ex-fiancée, and never mind their business…

… his business…

Footsteps on the stairwell: Robin thought she recognised the very slight unevenness in Strike’s tread. She waited, glaring towards the stairs, until she was sure that the footfalls were proceeding beyond the first landing; then she turned her chair resolutely back to face the monitor and began pounding at the keys again, while her heart raced.

‘Morning.’

‘Hi.’

She accorded Strike a fleeting glance while continuing to type. He looked tired, unshaven and unnaturally well dressed. She was instantly confirmed in her view that he had attempted a reconciliation with Charlotte; by the looks of it, successfully. The next two sentences were pockmarked with typos.