‘It may not be right,’ Clodius countered in a matter-of-fact tone. ‘But, nevertheless, it is my privilege. And there is nothing you can do about it.’

His words provoked howls of anger from Cato’s supporters, and, Marcus noted, many of the other senators looked angry, even some of those who normally supported Caesar. He turned to Festus.

‘I think Caesar is making a mistake. He shouldn’t rely on Clodius.’

‘Perhaps, but why risk losing the vote?’

‘The master is risking more than losing the vote.’ Marcus gestured towards the angry scene on the Senate floor. The shouting continued for a moment before Piso’s clerk rapped his staff on the marble floor. Gradually the noise died away and Piso nodded his head towards a tall figure sitting midway between Cato and Caesar.

‘The floor is open to Senator Cicero.’

Marcus leaned forward against the window frame. He wanted to make sure he didn’t miss a word. Cicero was one of the most respected of the senators and had not yet chosen which side to support. Whatever he said now might well sway opinion behind Caesar, or turn the Senate against him.

Cicero strode purposefully into the open space in front of the consul and turned to face the waiting senators. Marcus could sense their tense anticipation, but Cicero, who was a master of every trick in the book of public speaking, waited until he had complete silence before he began.

‘Honoured senators, let us not open old wounds. There are few of us here who can forget the terrible strife and violence that accompanied the age of Marius and Sulla. And none of us want to return to that time, when every senator was in fear of his life and the streets of our great city ran with blood. Therefore, let us approach our present difficulty with a spirit of compromise.’

Marcus saw Cato shake his head and make to rise from his seat. Cicero gestured for him to remain seated and, reluctantly, the other man eased himself back down. Meanwhile Caesar looked on, his face cold and expressionless.

‘Few can deny,’ Cicero continued, ‘that there are justifiable grievances on both sides. Caesar’s consulship was a time of great division, due to the nature of the laws he introduced, and even I question some of the tactics used to impose his will. But the present attempt to bring him to trial smacks of political motivation. Of course, I am sure that the Senate would give him a fair hearing and their ultimate decision would be guided by both reason and a sense of justice.’

Festus snorted with derision. ‘Who does he think he’s fooling?’

‘Shhh!’ a stout man at his side hissed.

‘However,’ Cicero resumed, ‘since Tribune Clodius has exercised his right to deliver a veto, then we cannot vote on whether there will be a trial. The tribune is within his rights to withhold his reasons for his decision, but I say to him that his act exhibits the kind of frivolity for which he has become notorious. He risks fuelling the divisions that already place the unity of this House under great strain.’