| Category | Lexicon |
| Type | monster lore |
On the world of Bal-Kriav, the initial harpies emerged in the coastal forests of Logor. Before their gruesome transformation, they were sprites serving under a Covenant general named Silvanus. During the Demon Spawn War (89 GE - 269 GE), they fought in the Zythess region against the minions of a demon lord called Jurusalax. Some of the captured sprites underwent a blood transfusion with Jurusalax, which served as an aphrodisiac, especially for those with magical abilities. The sprites who survived this demoniac process became the first harpies of Bal-Kriav.
Harpies have evolved significantly from their initial conception. During the Demon Spawn War, Jurusalax employed them as scouts and disruptive forces against the adversary. After centuries of interbreeding with local populations, their physical forms have transformed from monstrous to more humanoid, with some possessing a relatively alluring upper body. The infusion of new genetic material has granted them a hybrid appearance, blending human and avian traits, yet their demonic lineage persists; the majority remain as chaotic and malevolent as any fiend.