Discworld · Grimoire
The Summoning of Dragons
Tubal de Malachite
A book of dragon-summoning stolen from the Unseen University Library by a secret society, on the theory that a dragon would make an excellent political instrument.
A textbook dangerous book, in the most literal sense: the danger is not that reading it corrupts you, but that following the instructions works.
What makes it worth an entry rather than a footnote is the causal weight. Pratchett’s Watch sequence — arguably the best thing he wrote, six or seven novels of genuine political fiction — begins because a group of resentful mediocrities stole a library book. Not a prophecy, not a chosen one, not a dark lord stirring. A theft from a lending collection, committed by men who thought they could control what they were borrowing.
Set it beside Secrets of the Darkest Art, which is filed on the same shelf from a different universe. Both are books removed from a school library because someone in authority understood what a determined reader could do with them. Rowling’s headmaster locked hers in his office and it still got out. Pratchett’s Librarian is an orangutan who tracks his down personally, which is, on the evidence, the more effective security policy.
On the readability rating. We see it used and we see what it does. Of the text, effectively nothing — the summoning itself happens off the page and by committee.
In-world history
Held in the Unseen University Library until the Elucidated Brethren of the Ebon Night removed it. The Librarian, who takes book theft more personally than most, spends much of the novel tracking it, and is the character who understands soonest what has actually been done.
Why it matters
The theft is what starts the Watch. The dragon arrives, the city panics, and the three drunks and one idealist who constitute the Night Watch are the only people obliged to do anything about it. Every subsequent Watch novel — and Vimes' entire career — descends from a book being taken off a shelf.
Appearances
- Guards! Guards! (1989) — Terry Pratchett Stolen from the Unseen University Library and used to call a noble dragon into Ankh-Morpork
Connected volumes
- Related to The Octavo · Discworld
- Related to The Necrotelicomnicon · Discworld
- Related to Secrets of the Darkest Art · The Wizarding World
Catalogue record
- Category
- Grimoire
- World
- Discworld
- First appearance
- Guards! Guards!, 1989
- Readability
- Described
Sources
- Terry Pratchett, Guards! Guards! (Gollancz, 1989).
Added by house · last checked 2026-08-05