Lindsey Davis - Alexandria

Marcus Didius Falco – fixer, traveller and playwright

Helena Justina – his well-read wife and tour-planner

Julia Junilla, Sosia Favonia, Flavia Albia – their well-behaved poppets

Aulus Camillus Aelianus – Helena's brother, a diligent student

Fulvius – Falco's enigmatic uncle, a negotiator

Cassius – his life partner, a wonderful host

M. D. Favonius, aka Geminus – Falco's father, who was ordered not to come

Thalia – who will regret bringing him, an artiste

Jason – her python, a real curiosity

At the Royal Palace

The Prefect of Alexandria and Egypt – highly renowned (name not recorded)

A bunch of dim rich boys – his admin staff, typical high-fliers

Legionaries

Gaius Numerius Tenax – a centurion who gets the awkward jobs

Mammius and Cotius – his back-up, hungry for glory

Tiberius and Titus – on duty at the Lighthouse, bored (not for long)

At the Alexandria Museion

Philetus – the Museion Director, uplifted on merit?

Theon – Librarian of the Great Library, downcast

Timosthenes – of the Serapeion Library, hungry for promotion

Philadelphion – the Zoo Keeper, a ladies' man

Apollophanes – virtuous Head of Philosophy, a toady

Zenon – Chief Astronomer and not accountable

Nicanor – Head of Legal Studies, honest (honestly!)

Aeacidas – a self-assured tragedian, as good as anyone

Pastous – a library assistant, closely taking stock

Chaereas and Chaeteas – zoo and autopsy assistants, good family folk

Sobek – a Nile crocodile, hungry for action

Nibytas – an obsessive old reader and book-lover

Heras, son of Hermias – a Sophist scholar, none too wise

Students – as you would expect

Aedemon – an empirical physician (purges and laxatives)

Heron – a deus ex machina, earthly god of machines

Colourful Alexandrian characters

Roxana – an admired young woman, with poor sight

Psaesis – a litter-bearer (deserves a raise)

Katutis – in the gutter, gazing at the stars

Petosiris – an undertaker (knows where the bodies are)

Itchy and Snuffly – his helpers (stitching people up)

Diogenes – an ambitious man of commerce

A box-maker – his sidekick

Also

The legendary catoblepas – not appearing, but deserves a mention

The gnu – pure nostalgia

They say you can see the Lighthouse from thirty miles away. Not in the day, you can't. Still, it kept the youngsters quiet, precariously balancing on the ship's rail while they looked for it. When travelling with children, always keep a little game in hand for those last troublesome moments at the end of a long journey.

We adults stood close by, wrapped up in cloaks against the breeze and ready to dive in if little Julia and Favonia accidentally plunged overboard. To add to our anxiety, we could see all the crew making urgent attempts to work out where we were as we approached the long, low, famously featureless coastline of Egypt, with its numerous shoals, currents, rocky outcrops, suddenly shifting winds and difficult lack of landmarks. We were passengers on a large cargo boat that was making its first lumbering trip south this season; indications were that over the winter everyone had forgotten how to do this journey. The dour captain was frantically taking soundings and looking for silt in seawater samples to tell him he was near the Nile. Since the Nile delta was absolutely enormous, I hoped he was not such a poor navigator he had missed it. Our sailing from Rhodes had not filled me with faith. I thought I could hear that salty old sea god Poseidon laughing.

Some Greek geographer's turgid memoirs had supplied oodles of misinformation to Helena Justina. My sceptical wife and tour-planner reckoned that even from this far out you could not only see the Lighthouse, shining like a big confusing star, but also smell the city wafting across the water. She swore she could. True or not, we two romantics convinced ourselves that exotic scents of lotus oil, rose petals, nard, Arabian balsam, bdellium and frankincense were greeting us over the warm ocean – along with the other memorable odours of Alexandria, sweaty robes and overflowing sewage. Not to mention the occasional dead cow floating down the Nile.

As a Roman, my handsome nose detected this perfume's darkest under-notes. I knew my heritage. I came fully equipped with the old prejudice that anything to do with Egypt involved corruption and deceit.

I was right too.

At last we sailed safely through the treacherous shoals to what could only be the legendary city of Alexandria. The captain seemed relieved to have found it – and perhaps surprised at his skilful steering. We pootled in under the enormous Lighthouse then he tried to find one empty space to moor amongst the thousands of vessels that lined the embankments of the Eastern Harbour. We had a pilot, but pointing out a spare stretch of quay was beneath him. He put himself off into a bumboat and left us to it. For a couple of hours our ship manoeuvred slowly up and down. At last we squeezed in, shaving the paint on two other vessels with the joggle-mooring method.

Helena and I like to think we are good travellers, but we are human. We were tired and tense. It had taken six days from Athens, via Rhodes, and an interminable time out from Rome before that. We had lodgings; we were to stay with my Uncle Fulvius and his live-in boyfriend – but we did not know them well and were anxious about how we would find their house. In addition, Helena and I were well-read. We knew our history. So, as we faced up to disembarkation, I could not help joking about Pompey the Great: how he was collected from his trireme to go ashore to meet the King of Egypt – and how he was stabbed in the back by a Roman soldier he knew, butchered with his wife and children watching, then beheaded.

My job involves weighing up risks, then taking them anyway. Despite Pompey, I was all set to lead the way bravely down the gangplank when Helena shoved me out of her way.

'Oh don't be ridiculous, Falco. Nobody here wants your head – yet. I'll go first!' she said.

Foreign cities always sound so loud. Rome may be as bad, but it is home and we never notice the racket.

Groaning on a strange bed as I flexed beneath unusual coverlets made from no fleece I recognised, I awoke from dreams where my body seemed to be still rocking on the ship that brought us, to find unsettling light and noise. At my movement, an extremely unusual insect flew away from just beside my left ear. Agitated voices rose from streets outside, through those wobbly shutters with latches that I could not close last night upon our arrival, too exhausted to solve the incomprehensible riddles of strangers' door- and window-furniture. I had made some joke about us being set a life-or-death test by a winged Greek Sphinx, and my clever partner had pointed out we were now in the territory of the lion-bodied Egyptian Sphinx instead. It had not struck me there was any difference.

Thundering Jupiter. The inhabitants of this new place conversed at the tops of their voices, as they held harsh, pointlessly long arguments – though when I looked out hoping to see a knife fight, they were all just shrugging casually and strolling off with loaves under their elbows. The level of street sound seemed absurd. Unnecessary bells clanged to no purpose. Even the donkeys were noisier than at home.

I fell back into bed. Uncle Fulvius had said we could sleep in as long as we liked. Well, that got the maids clattering up and down the stone stairs. One even burst in on us to see if we were up yet. Instead of vanishing discreetly, she just stood there in her shapeless shift and sloppy sandals, grinning.