The dinner was pleasant enough. Their host, a noted epicure, knew the emperor well and had judged his tastes nicely. The food was fine, but not so fine that it was too exotic or ostentatiously expensive. The wine was decent, some of it scented as Trajan liked, and all of it plentiful. All of the guests were men, for the host’s wife had died years before and he had never taken another. Conversation flowed easily, with much merriment and jokes at the host’s and guests’ expense. A few of those present knew Trajan well enough to mock his habit of eating too fast or his abrupt, martial way of speaking and other idiosyncrasies that the emperor himself liked to laugh at. All was perfectly balanced, as was the talk, most of it innocuous, yet to the discerning observer helping to confirm the pecking order of those nearest the princeps. Little was serious, even less important, and Hadrian as the youngest man there said less than the others as was proper, refrained from correcting a number of ill-considered statements, and listened whenever there was something that truly mattered.

Another war with Dacia seemed likely, perhaps even inevitable, for there were more and more reports that King Decebalus was violating the treaty. Sosius’ most recent letters had told Hadrian even more than the emperor seemed to know, speaking of envoys of the king ranging widely to seek allies. That letter had come weeks ago, and another was surely due. Still, experience taught that it was best to trust Sosius and let the man go about his dark business without close supervision.

‘We will prepare this summer,’ Trajan said after a question from their host about the rumours. ‘Get most of the men and stores in place by the end of the year. Then next spring I will march into the mountains again and smash Decebalus if he won’t see sense. Ought to know by now that he is no longer dealing with Domitian.’

The diners voiced agreement more or less loudly. Most of them had served with the emperor in the previous war.

Hadrian, relieved to hear that there would be a campaign before his spell as commander of the legion was up, was even more pleased when Trajan followed up by addressing him.

‘My cousin will precede us all,’ he declared, voice slightly louder than necessary and words just a little slurred. Trajan rarely spoke of Hadrian as a relation, so that too was welcome. ‘I shall expect you to take a good look at the situation and report to me. Put that nosiness of yours to good use for a change, eh?’ Trajan tapped his own nose as the company laughed, and Hadrian tried to seem abashed but good humoured.

Trajan suddenly jabbed a finger towards him. ‘Find out what that Dacian bugger is up to! That’s what I want you to do!’ He turned to his host. ‘He’s a clever bastard, you know.’

Hadrian was not sure whether the emperor was referring to him or Decebalus. After that the talk drifted away to other matters, most of them trivial. There was less and less need to pay close attention as the evening wore on. A Trajan full of wine loved to tell long stories about past campaigns.