One fine day, A.D. 70, Sosia Camillina quite literally runs into Marcus Didius Falco on the steps of the Forum. It seems Sosia is on the run from a couple of street toughs, and after a quick and dirty rescue, P.I. Falco wants to know why.

Rats are always bigger than you expect.' Falco, ancient Rome's hangdog investigator, hates sharing a cell with a rodent - though being bailed by his old mother is almost as embarrassing. His high-born girlfriend can't decide if she wants him, and Titus Caesar's reward for past services is a wet fish. Hoping for a better life, or at least a better apartment, he takes on new clients. On the elegant slopes of the Pincian Hill, three nouveau riche freedmen with two flashy wives are under siege by a clever redhead.

"I’ve always wanted to see something of the Empire outside Rome." AD 71. Germania Libera: dark, dripping forests inhabited by bloodthirsty barbarians and legendary wild beasts, a furious prophetess who terrorises Rome, and the ghostly spirits of slaughtered Roman legionaries. Enter Falco, an Imperial agent on a special mission: to find the absconding commander of a legion whose loyalty is suspect.

Your brother seemed to know what he was doing.' Rome, AD 72. Falco returns home from a six-month mission to the German legions. But trouble is in store for him: his apartment has been wrecked by squatters and an ex-legionary friend of his colourfully heroic brother Festus is demanding money, allegedly owed him as the result of one of Festus's wild schemes. Worse still, the only client Falco can get is his mother - who wants him to clear the family name.

I was just a freelance hero doing his best in a hard world.' The spirit of adventure calls Falco on a new spying mission for the Emperor Vespasian to the untamed East. He's picking up extra fees from his old friend Thalia the snake dancer as he searches for Sophrona, her lost water organist. With the Chief Spy Anacrites paying his fare, Falco knows anything can go wrong. A dangerous brush with the Brother, the sinister ruler of Nabataean Petra, sends Falco and his girlfriend Helena on a fast camel-ride to Syria.

Marcus Didius Falco and his friend Petronius find their local fountain has been blocked - by a severed human hand. Soon other body parts are being found in the aqueducts & sewers.

It is 73 AD in Ancient Rome and inimitable sleuth Marcus Didius Falco is back with a vengeance. In one night, a man is killed and Rome's Chief of Spies left for dead. Naturally there is no one except Falco to conduct the investigation. Soon he is plunged into the fiercely competitive world of olive oil production. Political intrigue, an exotic Spanish dancer and impending fatherhood, all add to Falco's troubles.

What did he eat last? Whom did he eat, in fact? Lumbered with working alongside reptilian Chief Spy Anacrites, Falco has the perfect plan to make money - he will assist Vespasian in the Emperor's 'Great Census' of AD 73. His potential fee could finally allow him to join the middle ranks and be worthy of long-suffering Helena Justina. Unexpectedly confronted with the murder of a man-eating lion, Falco is distracted from his original task, uncovering a bitter rivalry between the gladiators' trainers.

"All the problems I know about are family ones." A frightened child approaches Roman informer Falco, pleading for help. Nobody believes Gaia's story that a relation wants to kill her--and neither does he. Beset by his own family troubles, by his new responsibilities as procurator of the sacred poultry, and by the continuing search for a new partner, Falco turns her away. Immediately he regrets it. Gaia has been selected as the new Vestal Virgin, and when she disappears Falco is officially asked to investigate.

"The first concern of an author is to do down his colleagues." In the long, hot Roman summer of AD 74, Falco, private informer and spare-time poet, gives a reading for his family and friends. Things get out of hand, as usual. The event is taken over by Aurelius Chrysippus, a wealthy Greek banker and patron to a group of struggling writers, who offers to publish Falco's work.

Marcus Didius Falco discovers that rank brings problems, the most gruesome of which is a corpse buried under the tiles of his new bath house. The contractors have fled to Britain where, as the Fates have it, Falco is ordered. A local chief and ally of the Romans is having a Palace built by the Emperor Vespasian. However, the project is running late, and fatal accidents keep happening. Falco, troubleshooting for the Emperor, is without an ally and now next on the list for assassination.

Greece, home of the ancient Olympic Games, is a favourite destination for Seven Sights Travel, a seedy company which provides escorted tours for wealthy travellers. When Marcus Didius Falco and Helena hear that a young girl and a newly-wed woman, both Roman visitors, have been murdered at Olympia, they both step in to investigate.

Julius Caesar left his gardens to the citizens of Rome, a peaceful sanctuary across the Tiber. Now the gardens and their sacred grove are dangerous haunts, especially for women alone. 'Don't go to the Grove,' people mutter, but when her husband has to leave Rome, it falls to Albia to supervise his building project in an old grotto. Why has someone buried tattered scrolls by obscure philosophers - and does it involve a worse crime than terrible writing? Soon that puzzle is overtaken.

Marcus was hoping for a relaxed visit to Britannia. But things turn serious at the scene of a murder. King Togidubnus has been stuffed down a bar-room well - leading to a diplomatic situation which Marcus must resolve.

Fresh from his trip to Britain, Falco needs to re-establish his presence in Rome. A minor role in the trial of a senator entangles him in the machinations of Silius Italicus and Paccius Africanus, two real-life lawyers at the top of their trade. These notorious ex-consuls play a dangerous game, where success brings rich pickings but a mistrial or a wrong verdict entails huge financial penalties.