Diablo Wiki
Author(s) Richard A. Knaak
Series The Sin War
Pages 336
Publisher Pocket Star
Published October 1, 2006
Binding Paperback

Birthright is the first book of the Sin War trilogy, written by Richard A. Knaak and published in 2006.


Since the beginning of time, the angelic forces of the High Heavens and the demonic hordes of the Burning Hells have been locked in an eternal conflict for the fate of all Creation. That struggle has now spilled over into Sanctuary -- the world of men. Determined to win mankind over to their respective causes, the forces of good and evil wage a secret war for mortal souls. This is the tale of the Sin War -- the conflict that would forever change the destiny of man.

Three thousand years before the darkening of Tristram, Uldyssian, son of Diomedes, was a simple farmer from the village of Seram. Content with his quiet, idyllic life, Uldyssian is shocked as dark events begin to rapidly unfold around him. Mistakenly blamed for the grisly murders of two traveling missionaries, Uldyssian is forced to flee his homeland and set out on a perilous quest to redeem his good name. To his horror, he has begun to manifest strange new powers -- powers no mortal man has ever dreamed of. Now, Uldyssian must grapple with the energies building within him -- lest they consume the last vestiges of his humanity.


The angel Inarius was the Commander of the Heavenly Hosts. Tired of the Great Conflict between angels and demons, Inarius sought to abandon the High Heavens luring angels who thought likewise to follow him. Rogue demons who were also tired of the eternal conflict allied with Angel Inarius, and together created Sanctuary. Inarius stole from the energies of creation to build the Worldstone which kept Sanctuary cloaked and hidden from the view of the High Heavens and the Burning Hells. With this, Inarius and Lilith (Mephisto's daughter) procreated Rathma and other children, the firstborn...known as the nephalem.

Lilith betrayed Inarius and attempted to use their children against the High Heavens. Inarius, however, killed many of their children. The remaining ones became depowered when Inarius altered the Worldstone to not just keep Sanctuary hidden, but also to depower the Nephalem into mere mortals. The descendants of the firstborn became Humans as centuries passed. Lilith was not dead as Inarius thought, and returned to awaken the dormant powers of Humans by choosing a farmer with potential ... Uldyssian ul-Diomed. Through deception, Uldyssian was hunted and accused of assassination of members of the Church of the Triune and the Cathedral of Light. Uldyssian in his quest awoke others unleashing a chain reaction of hundreds of human mortals with unbelievable powers who followed him unquestionably as a leader and teacher.

Uldyssian discovered his legacy and Lilith's deception backfired ending in her apparent demise and the destruction of the Church of the Triune. The Triune taught humans about the spirits of Mefis, Dialon and Bala (standing for Mephisto, Diablo and Baal). Its leader was the Primus ... no other than Mephisto's son Lucion. The Cathedral of Light was led by the Prophet ... secretly Angel Inarius in human form. Uldyssian was caught between both forces seeking to either destroy him or possessing him. For whoever got such prize would set the balance between victory over the High Heavens or the Burning Hells.

External Links

Official Diablo Fiction
Single Novels — DemonsbaneLegacy of BloodThe Black RoadThe Kingdom of ShadowMoon of the SpiderThe OrderStorm of LightMorbed
The Sin WarBirthrightScales of the SerpentThe Veiled Prophet
Compilations — Diablo ArchiveSin War ArchiveHeroes Rise, Darkness FallsTales from the Horadric Library
Comic Compilations — Tales of SanctuarySword of Justice
Sourcebooks — Deckard Cain's JournalWritings of Abd al-HazirBook of CainBook of TyraelThe Story of DiabloGarwulf's CornerBlizzard Entertainment: The Definitive A to ZBook of Adria: A Diablo Bestiary
Stay Awhile and ListenHow Two Blizzards Unleashed Diablo and Forged a Video-Game EmpireHeaven, Hell, and Cow LevelsBook III
Art Books — The Art of Diablo IIIThe Art of BlizzardThe Art of Diablo III: Reaper of SoulsDiablo III Deluxe Hardcover SketchbookBlizzard Cosplay: Tips, Tricks and HintsThe BlizzCon Book: A Celebration of Our CommunityThe Art of DiabloBlizzard 30th Anniversary JournalForging Worlds: Stories Behind the Art of Blizzard Entertainment
Short Stories — The InitiateLong Road's EndHatred and DisciplineWayfarerUnyieldingFireflyDoubtwalkerTheater Macabre: The Dark ExileThe HungerThe End of Her JourneyThe Orphan and the JewelerBrothers in ArmsMiddlewickTurn of a CardThe Chosen
Proposed/Canceled — A Kingdom for a SwordThe Fate of SiggardAngels of Darkness, Soldiers of LightLast of His KindDiablo