I set a warning hand on the tribune's arm. Then I told Xanthus to walk ahead and wait for us at the main gate opposite. He sulked, but had no choice. We watched him set off, scuffing his feet in the dust at first as a gesture, but soon preferring to save the turquoise leather of his nattily bethonged shoes.
'Who exactly is that?' queried Justinus in a wary tone.
'Not sure.' I gave him a stiff look, in case he thought it was a companion of my choice. 'If you want a boring couple of hours, get him to tell you why Spanish razors are the best, and the secrets of German goosefat pomade. He's a barber by trade – that's genuine. He forced himself on me as a tourist. I suspect there's a more sinister reason behind his trip.'
'He may simply have a yearning for travel.' I remembered that Helena's youngest brother had a touching faith in humanity.
'Or he may not! Anyway, I'm passing him off as Vespasian's nark.' Justinus, who must have known about my own undercover duties, or my past history anyway, smiled faintly.
As we waited for Xanthus to trot out of earshot, a slight breeze lifted our cloaks. It carried the characteristic aromas of cavalry stables, oiled leather and mass-produced stewed pork. Dust bowled across the parade-ground, stinging our bare shins. The hum of the fort reached us, like the low undernotes of a water-organ as it grinds into life: metallic hammering; rumbling carts; the clack of wooden staves as troops practised sparring against an upright stump; and the sharp cry of a centurion giving orders, raven-harsh.
'We won't find anywhere more private than here. Now Justinus, what's all this about? Tell me about Gracilis.'
'Not much to tell. He hasn't been seen.'
'Is he ill, or taking leave?'
'If so, it's highly impolite of him not to inform his senior colleague in the same fort.'
Tad manners would be nothing new!'
'Agreed. What alerted the First to something peculiar was that even his wife, who is with him here, seems unsure where he is. She asked my legate's wife if there was a secret exercise going on.'
'Is there?'
'Joke, Falco! We have quite enough operational tasks without playing board-games or throwing up practice camps.'
I paused for a moment, considering him. He had spoken with a flash of authority. Last time we met he had been holding down a junior tribune's place, but now he was wearing the broad purple stripes of a senior – his legate's right-hand man. Those posts were mainly earmarked for senators designate; promotion to them while in service was highly unusual. Justinus qualified socially – he was a senator's son – but his elder brother was using up all the embalming oil. The family had long ago decided this one was destined merely for middle-rank bureaucracy. Still, he would not be the first young man to discover that the army lacks preconceptions, or to find that once away from home he could surprise himself.
'So how are the Fourteenth reacting? What do the men say?'
'Well, Gracilis is a new appointment.'
'So I heard. Is he unpopular?'
'The Fourteenth have been having a few problems…Justinus was a tactful lad. The Fourteenth were a problem, but he glossed over that. 'Gracilis has a rather abrasive attitude. It goes down badly when a legion are in a touchy state.'
'Gracilis was the Senate's choice,' I confided, based on what Vespasian had told me. 'You know, "Step up, most excellent Florius. Your grandpa was a friend of ours; it's your turn next…" What's he like?'
'All virile sports, and shouts a lot.' We both winced.
'So let's be clear what you are suggesting, tribune. I already know the Emperor has doubts about this character, and now you say he's vanished. Has the First Adiutrix convinced itself that he has been bumped off – and by his own men?'
'Olympus!' Justinus flushed. 'That's an alarming suggestion!'
'Sounds like one you have grounds for.'
'The First is in a tricky position, Falco. We have no remit to interfere. You know how it is – the governor is away reviewing deployments at Vindonissa, so if Gracilis is playing truant, "honour among commanders" comes into play. Besides, my legate is reluctant to march in directly and demand to see his opposite, in case we're wrong.'
'He would certainly look foolish if Gracilis strolled out to greet him, wiping his breakfast porridge off his chin!' I agreed. Then, influenced by too long in a barber's company, I suggested, 'Gracilis may have had a haircut he's ashamed of and is hiding until it grows out!'
'Or he's developed an extremely embarrassing rash…' He sounded like Helena and their father, his serious air covered a highly attractive humorous streak. 'It's no joke though.'
'No.' I quashed the pang of misery his familiar laugh had roused. 'Gracilis had better be exposed, whatever crab he's caught.' I hoped it was nothing worse. Mutiny in the legions just when things were looking settled would be disastrous for Vespasian. And there were grim political implications if yet another Roman legate should disappear in Germany. 'I can see good reasons for keeping this news stitched up. Vespasian will want to plan how it is to be presented publicly… Camillus Justinus, you don't think the Fourteenth have reported the facts, and are waiting for special orders back from Rome?'
'My legate would have been informed.'
'Oh, that's what he thinks! Bureaucracy thrives on secrecy.'
'No, Falco. Despatch-riders are still bringing "Your eyes only" messages for Gracilis. I know because my own man keeps getting asked to sign for them. Neither Vespasian nor the governor would send confidential flags unless they believed Gracilis was available.'
My sour welcome from the primipilus and cornicularius was beginning to make sense. If they had simply lost their man, things looked bad for them; if he had been throttled in a hastily hushed-up mutiny, that was desperate. 'Their senior Crib brushed you off pretty shamelessly; my reception was much the same. Is that what always happens?'
'Yes. All the officers seem to be covering up.' This couldn't happen on the march, where Gracilis would have to be seen in the column, but here in the fort they could run things themselves. It reminded me of Balbillus's story of the legionary commanders coolly running Britain after having driven out their governor. But the era of anarchy was supposed to be over.
'Until the next festival occasion, there's no need to produce anyone in a commander's cloak,' I grinned. 'But if there is a conspiracy, I've just upset the tray of drinks! I brought an Iron Hand, plus orders for its investiture with a full colour ceremony. They'll need to parade their legate then.'
'Ha! The governor will make a point of being back for that!' Camillus Justinus had a streak of tenacity I liked. He showed real pleasure that. the Fourteenth's attempts to thwart him were about to be wrecked. 'When must they hold the ceremony?'
'The Emperor's birthday.' He looked uncertain. Vespasian was too new in power to be thoroughly enshrined in the calendar. I knew (a scribe who thought informers were ignorant had noted it in my orders). 'Fourteen days before December.' We were still in October. 'Which gives you and me the rest of this month plus the first sixteen days of November to sort out the puzzle discreetly and make names for ourselves.'
We grinned. Then we set off towards the main gate. Justinus had enough character to see the possibilities. It would do him good if he could untangle this conundrum before Rome had to be involved.
I felt obligations looming. I was his sister's lover – almost one of the family. It was my duty to assist him to good fortune. Even though Justinus probably hated the thought of what his sister and I had been up to. And even though I would be landing myself with most of the work.
As we walked, falling into companionable silence, I was thinking hard. This had the smell of serious trouble. I had been chasing enough of that already. I had only been at Moguntiacum a bare hour and now there was a second senior officer missing – just one more complication to add to the official missing legate, the mutinous troops, the maniacal rebel chieftain and the loopy prophetess.