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Terry Pratchett - Thud 0385608675.jpg
First edition
AuthorSir Terry Pratchett
Cover artistPaul Kidby
  • Discworld
  • 34th novel – 7th City Watch novel (8th story)
Publication date
Preceded byGoing Postal 
Followed byWintersmith 

Thud! is a fantasy novel by British writer Terry Pratchett, the 34th book in the Discworld series, first released in the United States on 13 September 2005, then the United Kingdom on 1 October 2005. It was released in the U.S. three weeks before Pratchett's native UK in order to coincide with a signing tour. It was nominated for the Locus Award for Best Fantasy Novel in 2006.[1]


As the book opens, a dwarf demagogue, Grag Hamcrusher, is apparently murdered. Ethnic tensions between Ankh-Morpork's troll and dwarf communities mount in the build-up to the anniversary of the Battle Of Koom Valley, an ancient battle where trolls and dwarfs seemingly ambushed each other. Lord Vetinari persuades Commander Vimes to interview a vampire applicant to the Ankh-Morpork City Watch. The new recruit, Lance-Constable Salacia "Sally" von Humpeding, along with Sergeant Angua and Captain Carrot, is attached to the investigation surrounding Hamcrusher's death.

Meanwhile, Corporal Nobbs and Sergeant Colon begin an investigation into the theft of the fifty-foot painting, The Battle of Koom Valley by the insane artist Methodia Rascal, from a city art gallery. Most of the populace believe the painting holds clues to a treasure hidden in Koom Valley. Nobbs has a new girlfriend, exotic dancer Tawneee; Nobby first caught her eye when slipping an IOU into her garter. Other subplots involve the tension between vampires and werewolves (new recruit Lance-Constable von Humpeding and Sergeant Angua), and the presence of Vetinari's auditor, A.E. Pessimal, in the Watch House.

Vimes finds himself pressured by Lord Vetinari to solve the murder quickly, before inter-species war erupts in Ankh-Morpork. Vimes and Sergeant Angua visit the dwarves' under-city mine, where a nervous dwarf named Helmclever draws a mysterious sign in the spilled coffee on his desk. In a fit of his particular brand of omnidirectional anger, Vimes veers off into the mine where he cuts himself, he supposes, on a locked door. Later, he persuades the deep down dwarves to allow Captain Carrot to be the "smelter" who looks for the truth of the murder.

When Carrot tries to find that truth, however, he is shown a body that was mutilated after death, and a confusing patch of clues. Angua discovers that a troll really was in the mine at the time of the murder, much to the consternation and fear of the dwarves who claimed a troll did the killing. This troll turns out to be Brick, who is a gutter troll of the lowest sort, addicted to Troll drugs beginning with "S," (such as Slab, Scrape, Slice, Slide etc.) and who becomes the protégé of Sergeant Detritus.

Angua and Sally soon discover four more bodies in the mine, dwarves clearly murdered by other dwarves. One of these dwarves used his own blood to scrawl yet another mysterious rune on the back of a door in the mine—the same door that Commander Vimes accidentally 'cut' himself on the other side of. The Deep-Downers flee for the mountains, taking the talking cube they found at the bottom of Methodia Rascal's well, and the painting of Koom Valley. As a parting shot, they send a squad of their guards to invade the Vimes/Ramkin family mansion and attempt to murder Lady Sybil Ramkin and Young Sam. The two survive unharmed, thanks to the fighting talents of Vimes and the family butler, Willikins, as well as a dwarf being foolish enough to provoke Sybil's dragons.

Vimes, along with family and several members of the Watch, travels to Koom Valley. He believes he is pursuing justice, but an astute troll king named Mr. Shine and a bright young grag named Bashfulsson know that Vimes is carrying the Summoning Dark, the quasi-demonic entity that wreaks vengeance on dwarves who have done evil in the sight of other dwarves. Vimes acquired the Summoning Dark when he touched the cursed door in the city mine, but his own internal watchman proves stronger than it is.

Vimes soon discovers the real secret of Koom Valley: the trolls and dwarves did not intend war, but had originally come to Koom Valley to broker peace. Weather conspired against them and after a thick fog caused a "double ambush", a flash flood carried them into the caverns below.

The Deep-Downers intended to destroy the evidence of this attempt at peace to continue the war between troll and dwarf and had sought out the cave where the surviving trolls and dwarfs had been washed. Preserved as a form of stalagmite, troll and dwarf had died as friends in the cavern while the ancient troll king and dwarf king played a game of Thud.

As the book ends, the tomb of the dead trolls and dwarves is opened to the public, in the hope that the two races will learn to end their centuries of animosity. Back in Ankh-Morpork the equipment that the Deep-Downers had abruptly left behind in their haste has been confiscated, under the clause of eminent domain by Lord Vetinari, seeing them as useful for his future "Undertaking" project.


  • Grag Ardent
  • Grag Bashfull Bashfullsson
  • Detritus
  • Brick
  • Sally von Humpeding
  • Carrot Ironfoundersson
  • Cheery Littlebottom
  • The Low King of the Dwarves
  • Mr. Shine
  • Angua von Überwald
  • Samuel Vimes
  • Sybil Ramkin Vimes


Strange Horizons found it to be "(l)ess-than-transcendent Pratchett", but noted that this meant it was "still better and more enjoyable, more worth reading than almost anything but more Pratchett", and expressed concern that Vimes' "immensely satisfying" victory over the Summoning Dark was at the expense of "the compelling contradiction in his nature", thereby making him a less unpredictable character.[2] Kirkus Reviews found it "(b)itingly relevant and laugh-out-loud funny," while assessing that Pratchett "loses his way a bit towards the end."[3]

Grumpy Old Bookman declared it to be one of Pratchett's "funniest" — although "not the strongest (...) in the last five years [2000-2005]" and considered that it would make a better film than most Discworld novels.[4]

Board game[edit]

Thud!, the book, is named after, and heavily features, Thud, the board game. The game, similar to ancient Nordic and Celtic Hnefatafl games, was developed earlier as a piece of Discworld merchandise and was inspired by the Discworld novels rather than originating in them. A new edition of the game was released at the same time as the book with a new game variation called 'Koom Valley Thud'.


  1. ^ "2006 Award Winners & Nominees". Worlds Without End. Retrieved 28 September 2009.
  2. ^ Thud! by Terry Pratchett, reviewed by Juliana Froggatt, published 19 December 2005; retrieved February 20, 2018
  3. ^ THUD! by Terry Pratchett, reviewed at Kirkus Reviews; published August 1, 2005; archived online May 20, 2010; retrieved November 26, 2018
  4. ^ Terry Pratchett: Thud , reviewed by Grumpy Old Bookman; published November 2, 2005; retrieved February 20, 2018

External links[edit]

Reading order guide
Preceded by 34th Discworld Novel Succeeded by
Preceded by 8th City Watch Story
Published in 2005
Succeeded by