'I remember!' said Marponius importantly.
'At my approach, Helena turned towards me, and appeared to notice this knife on the work bench; she picked it up. Both of us have eaten at Falco's mother's house on many occasions. We both recognised the pattern and initials. Helena made no attempt to hide it, but handed it to me immediately. As you see, it has been washed, but is stained around the shaft junction with traces of reddish colouring.'
'You take that to be blood?'
'I am afraid so.'
'What is your interpretation?'
Petro dragged out the words slowly. 'I asked the waiter about the knife. I didn't tell him I knew where it came from. He maintained he had never seen it before; it was not one he used at Flora's.'
'Is this the weapon which killed Censorinus?'
Petronius answered reluctantly. 'It may well be. If the waiter is telling the truth, the killer may have brought his own weapon to the caupona. When he came down from the bedroom he washed it in one of the buckets of water that are always in the kitchen area; then he threw the knife among the other utensils.'
'You're looking for someone intelligent,' I said dryly. 'It was a good place to hide a domestic implement. Pity it was recognised!'
Helena murmured in anguish, 'I'm sorry, Marcus. I just saw it and picked it up.'
I shrugged. 'That's all right. I never put it there.'
'You cannot prove that you didn't,' said the judge.
'And you cannot prove that I did!'
Helena demanded of Marponius, 'Are you really convinced that knowing someone had been stabbed upstairs, the waiter would not notice a strange knife among his tools?'
'Epimandos is pretty vague,' I said. Marponius looked unhappy, knowing it was bad practice to produce a slave in court. (Worse still if my pet theory was right and Epimandos was a runaway.)
Petronius agreed with me: 'He keeps a jumble of kitchen tools lying about at the back of the caupona. He's dreamy, untidy, and he was hysterical after the corpse's discovery. He could have missed anything.'
I was grateful for his help, but had to go on. 'Petronius, I still cannot accept unequivocally that this knife killed the centurion. Flora's is not renowned for hygienic practices; the red stains may not be blood at all, or if they are, it may be left from cutting up meat. What I'm saying is, you cannot actually prove that this is the murder knife.'
'No,' he replied levelly. 'But it's about the right size for the wounds.' It seemed too small, lying in his great hand. 'It's sharp enough,' he added. All my mother's knives were. They looked clumsy, but she used them a lot. They would slice through a cabbage stalk quite easily, taking any careless fingertip with them.
'The knife could have been anywhere since Ma lost it. It's not tied to me.'
'You are her son,' Petronius pointed out. 'Junilla Tacita is famously defensive. I cannot altogether take her word that the knife had been lost.'
'She would not lie, even for me.'
'Would she not?' Marponius asked, checking with me, Helena, Petronius. In fact none of us was sure. Attempting to appear reasonable, the judge said to me, 'If you ever brought me a suspect with this amount of evidence, you know you would expect me to order a trial.'
'I wouldn't do it. I would not be convinced myself.'
Marponius sniffed. My views were unimportant; he had too high an opinion of his own place in the world. I had my own thoughts on where he belonged: face down in a wet gulley with a rhinoceros standing on top of him.
I glanced at Petro. Slowly he said, 'Falco, I don't want to believe you did this, but no one else is a suspect, and all the circumstantial evidence indicts you.'
'Thanks!' I said.
I was feeling tired. This was hopeless. There was nothing I could say or do to extricate myself-or Helena, who looked like my accomplice in a bungled cover-up. The judge had completed his questions. He decided to hold both of us in custody.
Normally I would have appealed for assistance to Petronius. As he was the arresting officer, I had to wait for somebody else to come forward with our bail.
Somebody would. Helena Justina's family would adore the chance to berate me for getting her into this.
We were to be kept at the judge's house temporarily. He had us locked in separate rooms, but as soon as the house quietened down I picked my way out of mine and into hers. Only the fact that Helena was also trying to break her lock with a brooch pin held me up.
XXIX
I came in and leaned against the door, trying to look debonair. Helena had stepped back. Still clutching the brooch, she gazed at me. Guilt and fear were in her eyes; they were brighter than ever with anxiety now I had arrived. Mine were smiling. Probably.
'Hello, sweetheart. Are you breaking out to find me?'
'No, Marcus. I'm trying to escape before I have to face your wrath.'
'I never get angry.'
'Well you never admit it.'
I could never be angry with Helena Justina when she was fighting back with that determined glint. We were in serious trouble, however, and we both knew it. 'I am merely perplexed at how to extricate us from this mess, to which you must admit you have contributed:'
'Don't try being reasonable, Falco. The effort makes your ears go red.'
'Well, if you wanted to get back at me for my fling with Marina, I could have suggested less drastic ways-' I stopped. There were tears welling in her eyes. Helena had made a terrible mistake and under the show of pride she was desolate. 'I'll get us out of this,' I said, more gently. 'Just brace yourself for some bad jokes from your father when he has to come here grovelling to Marponius while he coughs up your surety.'
'Yours has been sent for too.'
'Mine won't come.'
She would not be consoled, but we were on friendlier terms now. 'Marcus, what happened to your face?'
'It hit somebody's fist. Don't worry, fruit. Marponius hasn't enough evidence against us to name a date for a hearing in court. That means he has to release us. If I'm free on bail I shall at least be able to pursue my enquiries without constantly having to dodge Petronius.'
Helena looked rueful. 'Your best friend-who now knows you're living with an idiot!'
I grinned at her. 'He knew that already. He thought you were insane to take me on.'
'He told the judge it was true love.'
'And is he wrong?' I reached for the brooch she was still holding, and pinned it back on her neatly. 'Marponius believed him enough to lock us up in separate cells to prevent collusion. Well, then-' A tremulous smile from Helena answered my broad grin. I held out my arms to her. 'So, my darling, let's collude!'
XXX
It took so long for Helena's papa to rally round, I began to dread that he was leaving us to stew. He might have refused to pay a judicial ransom to release me, but I did think he would rescue Helena. Her mother would insist on it.
Helena's conscience was tormenting her. 'It's all my fault! I just noticed the knife and took hold of it because I wondered whatever something of your mother's could be doing there:'
Holding her close I soothed her. 'Hush! All the family go to Flora's. Any one of them could have decided to take their own bread-cutter to attack the week-old rolls. And they are all daft enough to leave it behind afterwards.'
'Maybe one of them will remember:'