‘He envies your freedom,’ Helena disagreed. ‘It may be why he tries to sabotage your cases. He realises your talent, hates how you can choose to accept or refuse work. Most of all, Marcus, he longs for you to be his friend. He loved working with you on the Census—’ He drove me mad on it. ‘But he’s like an angry young brother, jumping up and down to get your attention.’ She had two younger brothers. ‘He has done this before to you and Petro. So, treat him like a tiresome brother; just ignore it.’

I went with the simile. ‘I don’t want the nasty little menace to have a fit and smash my toys!’

‘Well, keep your toys on a high shelf, Marcus.’

It was late. We were tired, not exhausted but not yet ready to go up to bed. In a family household, this was a rare moment of quiet. We stayed hand in hand, savouring the situation, re-establishing our strong partnership after a period of upset and absence. Helena caressed my cheek with her free hand; I bent and gently kissed her wrist. We were a man and his wife, at home in private, enjoying one another’s presence. Nothing really intimate was occurring—or not yet—but the last thing we wanted was an interruption. So that was when the bastard came, of course.

I mean, Anacrites.

I was dimly aware of noises downstairs—not urgent, no cause for us to involve ourselves. Then a slave I did not remember owning knocked and came in. This was what it meant to be wealthy: total strangers were living in my house, knew who I was, addressed me humbly as their master.

‘Sir, will you receive a visitor?’

The visitor must have had a suspicion what my answer would be. He followed the lad and rudely pushed in after him. ‘I do apologise for calling so late—I just heard about your father, Marcus. I came immediately!’

Helena murmured, ‘Thank you,’ to the young slave, so he would know we saw it was not his fault. He slipped away. She and I remained in position just long enough to let anyone less crass than the spy see he was intruding. He had probably come from the office; he even looked around as if hoping for a titbit tray. Failing a guest went against our idea of hospitality, but like stoics we refused to offer him refreshments.

I stood up, sighing openly. A mistake, because it allowed Anacrites to bound right up, grasping my hands in his. I wanted to snatch back my paws, apply them round his beautifully barbered neck and strangle him; but we were standing on an attractive rag rug, and I was reluctant to defile it with his corpse.