‘The very fact that we were sent out to investigate the situation means that he must have some grounds for suspecting you, and he will be taking every precaution to ensure that he undermines any plan you might make to turn against the Emperor.’

‘So?’

‘So there’s no chance that you will be given any reinforcements. No matter how much you present the situation as dangerous to Roman interests, Narcissus will not send you extra forces. In which case, any plot there might have been would be doomed to failure. Wouldn’t you agree, sir?’

‘Maybe. Assuming such a plot existed.’

‘On that basis, there is still some advantage to be wrung out of the situation.’

Longinus stared at Cato, and then made an open gesture with his hands. ‘Please explain yourself.’

‘Yes, sir.’ Cato concentrated for a moment and then spoke again. ‘You already know the danger we face from Bannus. If his uprising spreads beyond this immediate area, then the whole province of Judaea could turn on Rome. What you may not know is that we have heard rumours that Parthia has offered to assist Bannus. With weapons, maybe even with men as well. If that is the case, then the stakes are even higher. Apart from having to crush the revolt in Judaea you would need to confront the Parthians and persuade them to withdraw their aid. If they had any doubts about your loyalty to the Emperor, the presence of a maverick Roman general on their borders might cause a diplomatic confrontation that Parthia might use to trigger a new war with Rome, sir.’ Cato paused for an instant, worried that he had given his imagination too free a rein. ‘At least it’s a possibility, sir.’

‘It’s more than a possibility.’ Longinus frowned. ‘My spies have been reporting that Parthian troops have been spotted moving up the bank of the Euphrates towards Palymra. Their ambassador says they are carrying out exercises. It could be an unfortunate coincidence.’

‘It could be, sir. But it would be rash not to make preparations to counter the threat.’

‘If there is a threat. How could they know about Bannus’ planned uprising?’

‘I’m sure they have spies just as we do, sir.’

‘You said there was some advantage to be gained,’ Longinus reminded him.

‘Yes, sir. If you send us reinforcements to help find and destroy Bannus, then the danger in Judaea can be averted. That leaves you free to confront Parthia.A strong show of force should discourage them from breaking the peace. When everything has settled back down, you can report your achievements to the Emperor and the Senate. I’d say they will regard you as something of a hero. Certainly enough to remove any doubts over your loyalty, sir.’