III

I woke with a start, wondering where I was. It must have been morning, because even at my most dissolute I seldom sleep until noon, and yet the bright sunlight streaming into the window above my head had the soft quality of afternoon light in early autumn. The earth seemed to shudder, but not with the sudden convulsion of an earthquake. The house creaked and groaned all about me, and when I started to rise I felt my elbows sink into a vast, bottomless pillow of down.

A vaguely familiar voice drifted in from the porthole above my head, a gruff soldier's voice shouting orders, and I remembered all at once.

Next to me Eco groaned and blinked open his eyes. I managed to pull myself up and sat on the edge of the bed, which seemed to be trying to pull me back into the soft, forgetful haze of that luxurious mountain of down. I shook my head to clear it. A ewer of water was hooked into a bracket on the wall. I picked it up by both handles and drank a long draught, then scooped my hands full of water to splash my face.

'Don't waste it,' a voice barked. 'That's fresh water from the Tiber. For drinking, not washing.' I looked up to see Marcus Mummius standing in the doorway with his arms crossed, looking bright and alert and flashing the superior smile of an early riser. He had changed into military garb, a tunic of red linen and red leather beneath a coat of mail armour.

'What time is it?'

'Two hours past noon. Or as they say on land, the ninth hour of the day. You've done nothing but sleep and snore since you fell into that bed last night.' He shook his head.

'A real Roman shouldn't be able to sleep on a bed that soft. Leave that kind of nonsense to fancy Egyptians, I say. I thought you'd taken ill, but I'm told that dying men never snore, so I decided it couldn't be too serious.' He laughed, and I enjoyed the grim fantasy of imagining him suddenly spitted on a fancy Egyptian spear.

I shook my head again. 'How much longer? On this ship, I mean?'

He wrinkled his brow. 'That would be telling, wouldn't it?'

I sighed. 'Let me ask you this way: how much longer until we reach Baiae?'

Mummius looked suddenly seasick. 'I never said-'

'Indeed you did not. You're a good soldier, Marcus Mummius, and you divulged nothing to me that you were sworn to conceal. Still, I'm curious to know when we'll come to Baiae.'

'What makes you think-'

'I think, Marcus Mummius; exactly. I would hardly be the man your employer was seeking if I couldn't figure out a simple riddle such as our destination. First, we are most assuredly heading south; I'm not much of a sailor, but I do know the sun rises in the east and sets in the west, and since the afternoon sun is on our right and the coast on our left, I deduce we must be sailing south. Given the fact that you promise that my work will be done in five days, we can hardly be going beyond Italy. Where else, then, but a town on the southern coast, and most likely on the Cup? Oh, perhaps I'm wrong in choosing Baiae; it could be Puteoli, or Neapolis or even Pompeii, but I think not. Anyone as wealthy as your employer – able to pay five times my fee without a qualm, able to send a ship such as this on what seems to be a whim – anyone that rich is going to have a house at Baiae, because Baiae is where any Roman who can afford it builds a summer villa. Besides, yesterday you said something about the Jaws of Hades.'

'I never-'

'Yes, you said many lives were at stake, and you spoke of babies wailing in the Jaws of Hades. Now, you could have been speaking in metaphors, like a poet, but I suspect there is a conspicuous absence of poetry in your soul, Marcus Mummius. You carry a sword, not a lyre, and when you said "Jaws of Hades" you meant the words literally. I've never seen it for myself, but the Greek colonists who originally settled around the Cup believed they had located an entrance to the underworld in a sulphurous crater called Lake Avemus – also known as the Jaws of Hades, Hades being the Greeks' word for the underworld, which old-fashioned Romans still call Orcus. The place is only a brisk walk, I hear, from the finest homes in Baiae.'

Mummius looked at me shrewdly. 'You are a sharp one,' he finally said. 'Maybe you'll be worth your fee, after all.' I heard no sarcasm in his voice. Instead there was a kind of sadness, as if he truly hoped I would succeed at my task, but expected me to fail.

An instant later Mummius was swaggering out the door and bellowing over his shoulder. 'I suppose you'll be hungry, after snoring all day. There's food in the mess cabin amidships, probably better than what you're used to at home. Too rich for me – I prefer a skin of watery wine and a hard crust of bread – but the owner always stocks the best, or what the merchants tell him is best, which means whatever is most expensive. After you eat you can take a long nap.' He laughed. 'Might as well, you'll only get in the way if you're awake. Passengers are pretty useless on a ship. Not much for them to do. Might as well pretend you're a bag of grain and find a spot to gather mould. Follow me.'

By changing the subject, Marcus Mummius had avoided admitting that Baiae was our destination. There was no point in pressing the matter; I already knew where we were going, and now a greater matter weighed on my thoughts, for I was beginning to suspect that I knew the identity of my mysterious new employer. Who could have afforded so ostentatious a means of transport for a mere hireling, and a barely reputable one like Gordianus the Finder, at that? Pompey, perhaps, could muster such resources on a private whim, but Pompey was in Spain. Who then but the man reputed to be the richest Roman alive, indeed the richest Roman who had ever lived – but what could Marcus Licinius Crassus want of me, when he owned whole cities of slaves and could afford the services of any free man he desired?

I might have badgered Mummius with more questions, but decided I had taxed his patience enough. I followed him into the afternoon sunlight and caught a whiff of roasted lamb on the bracing sea breeze. My stomach roared like a Hon, and I abandoned curiosity to satisfy a more pressing appetite.

Mummius was wrong to think that I would be bored with nothing to do on the Fury, at least as long as the sun was up. The ever-changing vista of the coast of Italy, the wheeling gulls overhead, the work of the sailors, the play of sunlight on water, the schools offish that darted below the surface, the crisp, tangy air of a day that was no longer summer but not quite autumn – all this was more than enough to occupy me until the sun went down.

Eco was even more entranced. Everything fascinated him. A pair of dolphins joined us at twilight and swam alongside the ship until long after darkness had fallen, darting in and out of the splashing wake. At times they seemed to laugh like men, and Eco mimicked the sound in return, as if he shared a secret language with them. When at last they disappeared beneath the foam and did not return, he went smiling to his bed and fell fast asleep.

I was not so lucky. Having slept most of the day, I faced a sleepless night. For a while the shadowy coast and the sparkle of stars on the water charmed me quite as much as had the luminous afternoon, but then the night grew colder, and I took to my bed. Marcus Mummius was right: the bed was too soft, or else the blanket was too rough, or the faint starlight through the porthole was too distracting, or the noises Eco made in his sleep, mimicking the dolphins' laughter, grated on my ears. I could not sleep.

Then I heard the drum. It came from somewhere below, a hollow, throbbing beat slower than my own pulse but just as steady. I had been so exhausted the night before that I had not heard it; now I found it impossible to ignore. It was the beat that drove the slaves at their oars below deck, setting the rhythm that carried the ship closer and closer to Baiae. The more I tried not to hear it, the louder it seemed to rise up through the planks, beating, beating, beating. The longer I tossed and turned, the further sleep seemed to recede.