Seth has set out on a new adventure to unravel the mysteries of Radiant. His destination is Caislean Merlin, the city of the Knights-sorcerers. He boards Alma's airship and, along with Alma and her new helpers, Bossman and Jiji, heads for the continent of Cyfandir. Meanwhile, Dragunov, the Inquisition captain, visits the Inquisition's holy land at General Torque's order. He's prepared to face capital punishment, but...
To solve the mysteries of Radiant, 
the cause of all the fighting,
،ولهدف حلّ لغز راديان الغامض
،سبب كلّ القتال
Um das Mysterium des Radiants zu lösen,
der Auslöser für all die Konflikte ist,
Para resolver los misterios de Radiant,
la causa de los conflictos,
Para resolver los misterios de Radiant,
la causa de los conflictos,
Pour résoudre
le mystère autour du Radiant
Per svelare i misteri del Radiant, 
ovvero la causa scatenante di ogni disputa,
Para resolver os mistérios de
Radiant, a causa de toda a luta,
Чтобы отыскать причину всех конфликтов —
Радиан — Сэт отправляется в путь.