'Now, little mouse,' Helena began, 'listen and listen well.' All propriety forgotten, the Empress got to her feet and moved her stool so close her knees almost touched Claudia's. 'Four weeks ago, the daughter of a wealthy senator was kidnapped as she travelled down the Via Salvana to visit friends in the country. A ransom of twenty-five thousand gold coins was demanded.' Helena held her hand up at Murranus' low whistle of surprise. 'The girl's parents were sent a note which could have been written by any common city scribe, whilst it was delivered by a boy who could provide little description of who had given it to him. The note mentioned where and when the girl would be released, at the great cemetery which borders the Appian Way, close to the mausoleum of some long-dead merchant. Now you know that cemetery, a forest of grass, decayed tombs and undergrowth. A myriad of paths and hiding places wind their way through it.'

'Whilst beneath lie the catacombs,' Claudia added.

'Precisely,' Helena agreed. 'The girl's parents were warned that any attempt to trap their daughter's abductors would mean she'd suffer a slow, lingering death and they would never see her again. On the appointed day, at the appointed hour, the steward of that girl's family left two panniers full of gold coins at the place stipulated. The parents had been advised that once these had been scrutinised, they could return to the cemetery around the ninth hour and find their daughter. They did so with a comitatus of freedmen. The girl was found. She had been released long before the ninth hour. Her hands were still bound; she'd been simply gagged, blindfolded and left to wander!' Helena took a deep breath. 'The parents found her just in time. Some of the Inferni, the rabble who prowl such places…' She paused as Claudia flinched. 'You know about these?'

Claudia would not tell the Augusta how, in the catacombs beneath that cemetery, she'd often met Presbyter Sylvester the powerful lieutenant of the Bishop of Rome, as the Christians called their leader. She had always been on her guard when she went there,- the Inferni were truly creatures of the dark. For an innocent girl to be found by them…

'What happened?' she asked.

'The Inferni had released her gag and were about to rape her,' Helena replied. 'Only the girl's screams alerted her parents. The Inferni fled, and she was found safe and sound. In subsequent weeks three more abductions took place, the same pattern being followed. None of the victims could tell the Vigiles anything.' Helena spat the words out, showing her usual contempt for the corrupt city police. 'They could say little more than that they'd been abducted, blindfolded, chained, kept in a cold place, fed, allowed to use a latrine, and threatened now and again by a voice.

They could tell us nothing about that voice, be it Roman or from the provinces, male or female.' Helena paused. 'Then last night, Antonia, the beloved only daughter of Senator Carinus, was kidnapped. The ransom note demanding the same sum arrived this morning. She is to be released in two days' time.'

Helena opened the small casket on the floor beside her and handed Claudia a piece of dingy and grease-marked parchment. The stark message was bluntly inscribed: 'Antonia, 25,000 gold coins on the day after tomorrow near the tomb of the tribune Marcus Sonertus in the cemetery of the Appian Way. She will be released at the ninth hour; failure or trickery will kill her.'

Claudia studied the crude letter and recalled that sprawling, lonely cemetery. She only went there because she had to. Not only did the Inferni roam there, it was also the haunt of warlocks, wizards, sorcerers and outlaws, dark souls who seethed in the shadows of Roman society. The cemetery lay beyond the city gates with many approaches, a dizzying warren of snaking tracks and twisting paths, and beneath it more passageways, tunnels and caverns.

'Claudia? Claudia?' Helena smiled at her. 'I haven't finished.'

'Augusta, I'm sorry.'

'Don't be, just stay attentive. The fate of a few children should not really concern me, but the senators of Rome are agitated, their womenfolk even more so.' Helena licked her lips. 'The peace my son has imposed has engendered a great love for the Christian religion. Groups are forming; the most important of these are the Magdalena. They are

Christians, wives of leading men in Rome who fully accept the Christian way. They believe they are administering to Christ just as the Jewess Mary Magdalene did. Every noble cause attracts their attention, especially,' Helena smiled, 'the conversion of fallen ladies, the women of the night. The Magdalena are led by the Lady Urbana, wife of Aurelian, a former comrade of my husband and son, a general who did great work for us in Britain. Aurelian held the province during our scramble for empire. I have known him since I was…'

Helena's voice had turned wistful. It was the closest Claudia had ever seen her come to talking about her early days when, according to snobbish courtiers, Helena had been a great beauty, the daughter of a simple tavern-keeper from some provincial town.

'Ah well.' The Empress smiled softly. 'I have known him since I was a green shoot. Now Urbana,' she added brusquely, 'is British, a refugee from that province. She caught Aurelian's eye and became his second wife, stepmother to the general's beloved only son, Alexander. Yes,' she added as if talking to herself, 'wife to Aurelian, one of the richest men in Rome. Urbana left Britain as a girl and came with her father, a Roman officer, back to this city. Britain was sliding into chaos; the Picti and Scoti came flowing over the wall to the north, whilst pirates were plundering the coast. The roads became swollen with refugees; families were separated. One of these refugees was Cassia, a beautiful child made mute by the horrors she had witnessed. Urbana befriended her, but when they came to Rome they drifted apart. Cassia became a leading courtesan. Urbana, years later, after she had married Aurelian, was baptised a Christian. She met Cassia and converted her, took her from a life of pleasure.' Helena's voice turned cynical. 'Cassia is now Urbana's constant companion, whilst hers is a eunuch, the Parthian Leartus who translates for her. I mention these because soon you will meet them. Treat them carefully, none of your sharp talk.'

'Augusta, why have they come here?'

'Ah, first because they brought the ransom note left at the Villa Carina where the Magdalena are still comforting the good senator. Secondly, they also brought Theodore the actor. He was with Antonia when she was abducted. Theodore claims he tried to defend her. In the struggle he allegedly knocked off the mask of one of the attackers and, perhaps, gained a description of him. Thirdly,' Helena blew her cheeks out, 'Urbana is a very powerful woman. She is, in fact, representing all the senators, merchants, administrators and generals of Rome, and more importantly their wives, who are now protesting at a so-called breakdown of law and order in the city. I need not spell out, Claudia, what is involved here. My son is Emperor of the West; one day he will march east to become emperor of the world. He'll bring that pervert Licinius to battle and annihilate him. We need these powerful people of Rome until…' Helena paused, 'until we've marched to the rim of the world, then we'll build a new empire, even a new city.' She glanced at Murranus. 'Is all this beyond you, gladiator?'

'Should it be, Augusta?'

Helena laughed. 'I asked you to come here.' She offered Murranus her goblet of wine. He took it, drank deeply and handed it back. 'Urbana is now very nervous about her stepson Alexander. I want you to be his bodyguard; you'll be paid lavishly.' Helena acknowledged Claudia's wide smile. 'I could have given them Burrus.' The Empress looked warningly over her shoulder at the hulking German still standing to attention behind her. 'But he and his lovely lads have to be kept on a firm leash, otherwise it's wine and women and anything that moves.'