Interesting Times, the 17th novel in Terry Pratchett's Discworld series, finds the planet's oldest empire in the midst of bitter turmoil after the publication of the revolutionary treatise What I Did on My Holidays. Workers, with nothing to lose but their water buffaloes, are joining forces against old warlords, spreading violence throughout Discworld's ancient cities. All that stands in the way of total destruction are three decidedly non-heroic creatures.

A weathercock has risen from the sea of Discworld and suddenly you can tell which way the wind is blowing. A new land has surfaced and so have old feuds. And as two armies march, Commander Vimes of Ankh-Morpork City Watch has got just a few hours to deal with a crime so big that there's no law against it. It's called 'war'.

Time is a resource. Everyone knows it has to be managed. And on the Discworld that is the job of the Monks of History, who store it and pump it from the places where it's wasted (like the underwater; how much time does a codfish need?) to places like cities, where there's never enough time. But the construction of the world's first truly accurate clock starts a race against, well, time for Lu Tze and his apprentice Lobsang Ludd.

Sam Vines is a man on the run. Yesterday, he was a duke, a chief of police, and an ambassador. Now he has nothing but his native wit and the gloomy trousers of Uncle Vanya. And if he can't make it through the forest to civilisation, there's going to be a terrible war. But there are monsters on his trail. They're werewolves - and they're catching up. Sam Vimes is out of time and already out of breath....

William de Worde, the accidental editor of Discworld's first newspaper, just wants to get to the truth. Unfortunately, everyone else wants to get at William. And it's only the third edition.

Who's murdering harmless old men? Who's poisoning the Patrician? As autumn fogs hold Ankh-Morpork in their grip, the City Watch has to track down a murderer who can't be seen. Maybe the golems know something - but the solemn men of clay, who work all day and night and are never any trouble to anyone, have started to commit suicide....

Young Susan has always suspected that her Grandfather was different, as though all the time he spent riding a white horse and wielding a scythe weren't enough of a giveaway. Now that her worst fears have been confirmed, Susan learns that she's expected to take over the family business when she grows up, even though most people mistake her for the Tooth Fairy. But as attractive as Death can be to many people, Susan is drawn into something else.

You've heard of Faust - this is Eric. There's a difference. Eric is 14, lives on the famed and magical Discworld, and is the first ever demonology hacker. Fortunately, he doesn't succeed in raising any devils, but he does raise Rincewind (the most incompetent wizard in the universe) and the Luggage (the world's most dangerous travel accessory).

It's an offer you can't refuse. Who would not wish to be the man in charge of Ankh-Morpork's Royal Mint and the bank next door? It's a job for life. But, as former con-man Moist von Lipwig is learning, the life is not necessarily for long. The Chief Cashier is almost certainly a vampire. There's something nameless in the cellar (and the cellar itself is pretty nameless), and it turns out that the Royal Mintruns at a loss.

Truth! Justice! Freedom! And a hard-boiled egg! Commander Sam Vimes of the Ankh-Morpork City Watch had it all. But now he's back in his own rough, tough past, without even the clothes he was standing up in when the lightning struck. Living in the past is hard. Dying in the past is incredibly easy. But he must survive; he has a job to do.

Rats! They're everywhere: in the breadbins, dancing across tabletops, stealing pies from under the cooks' noses. So what does every town need? A good piper to lure them away. That's where Maurice comes in. But he's only a cat (though one that talks).

A 'sourcerer' is born in Discworld - a wizard so powerful that he makes all other magicians look like a bunch of fools in pointy hats. Now, suddenly, Discworld is brought to the brink of an all-out thaumaturgical war. The only hope for peace is Rincewind, the failed magician who has a risky plan to save the world. He enlists the help of several odd new characters, including Conina the barbarian hairdresser, Nijel the Destroyer and a yuppie genie who sees lamps as a growth industry.

The town of Ankh-Morpork is in big trouble and the City Watch is desperate for a few good men to protect it. But all they've got are the dwarves Corporal Carrot and Lance-constable Cuddy, the troll Lance-constable Detritus, Lance-constable Angua, who is believed to be a woman and, worst of all, Corporal Nobbs, who has been disqualified from the human race for shoving! These underdogs need all the help they can get, for they've been given only 24 hours to clean up the war-torn town.

In Terry Pratchett's Reaper Man, Death has left Discworld - but that's not necessarily a good thing. After all, chaos always ensues whenever important public services are withdrawn, and Discworld is no exception. Society is suddenly overrun by ghosts and poltergeists, while Dead Rights activist Reg Shoe finds himself busier than he's ever been and newly-deceased wizard Windle Poons rises from his coffin as a living corpse.

Suddenly, condemned arch-swindler Moist von Lipwig found himself with a noose around his neck and dropping through a trapdoor into...a government job? By all rights, Moist should be meeting his maker rather than being offered a position as postmaster by Lord Vetinari, supreme ruler of Ankh-Morpork.