The Book of the New Sun

Overview

The Book of the New Sun supports campaigns that blend decadent far-future societies, relic technology mistaken for magic, and moral ambiguity. The atmosphere is ceremonial, dreamlike, and politically charged.

Setting Signals

Earth is ancient, exhausted, and culturally stratified.
Institutions are old, secretive, and partly theatrical.
Ruins and artifacts hold power no one fully understands.
Travel reveals social layers: guild districts, courts, prisons, necropolises, and drowned cities.

Core Campaign Motifs

Unreliable memory: Testimony and history conflict; truth is iterative.
Ritual justice: Trials, offices, and punishments structure political life.
Mythic technology: Devices appear miraculous because context is lost.
Transformation arcs: Exile, title shifts, and identity reinvention drive long play.

Adventure Utility

Use this material for:

Court-to-wilderness campaigns where rank and ceremony matter.
Pilgrimage structures with symbolic waypoints and escalating revelation.
Intrigue scenarios where faction narratives are mutually incompatible.
Ruin expeditions that unlock both practical power and existential risk.

Encounter and Scenario Palette

Hierarchical guild enforcers and masked officials.
Obsolete war-machines treated as saints, monsters, or relic gods.
Memory-contaminated NPCs whose accounts change under pressure.
Catastrophic environmental zones linked to old-world infrastructure.

Commonwealth Lexicon

Selected terms from the official Commonwealth Glossary for session flavor, NPC titles, and world texture. The Commonwealth is the ruling polity of Urth in Severian's era.

Social strata (use for NPC classification and address): - Exultant — closed aristocracy. Armiger — above merchant class. Optimate — wealthy merchants, title "Goodman". Commonality — commoners. - Cacogen — slur for off-worlders ("born of filth"). Extern — foreigner born outside the Commonwealth. - Sieur — polite address for aristocracy, often misapplied by commoners.

Guild and judicial (Torturer's Guild and juridical apparatus): - Anacrisis — interrogation under torture. Carnifex — executioner. Inquisitor — the examiner directing torture (never a guild member). - Abacination — blinding a client with hot irons. Defenestration — execution by high window. Noyade — execution by drowning. Estrapade — suspension torture by rope. - Client — a prisoner of the Matachin Tower. Delator — informer or accuser. Lictor — provincial officer administering criminal justice. - Quaesitor — judicial official. Pursuivant — messenger with limited authority to negotiate.

Military (use for encounter framing and faction descriptions): - Cataphract — fully armoured soldier. Hoplite — heavy-armed foot. Peltast — medium-armed foot with shield and javelin. - Pandour — large unofficial soldiers drawn from exultant private guards. Dimarchi — dragoons, also used as police. - Cohort — 300–600 men. Maniple — 200 men. Xenagie — cavalry unit of ~500 men. - Chiliarch — commander of 1,000. Lochage — leader of 100. Vingtner — sergeant of 20.

Useful miscellany (flavor and encounter tables): - Eidolon — phantom or specter. Homunculus — artificial or synthetic man. Hatif — familiar spirit or daemon. - Apport — a being teleported to a ship by mirror sails. Pseudothyrum — secret door. - Gymnosophist — ascetic philosopher. Philomath — lover of learning. Philonoist — searcher for knowledge. - Spelaeae — cave-dwelling creatures. Clavinger — jailer/detective. Roundsman — patrol man. - Thaumaturge — wonder worker. Archimage — high priest of fire worshipers or great mage.