Rainoga

The Serpent Hills rise as a jagged spine of red-clay and scorched stone, east of the High Moor and west of the Delimbiyr Vale, steeped in mystery and scaled menace. These rugged uplands are riddled with narrow ravines, sun-blasted escarpments, and hidden sinkholes that plunge into the shadowed depths of the Upperdark. Among their most infamous features are the ancient Netherese crypts etched into cliff walls and buried in forgotten tunnels—remnants of a time before recorded history. Beneath them lies Reeshov, a grimlock city deep in the Underdark, steeped in darkness and madness. Yuan-ti malisons and abominations slither through ruins and jungle-shrouded paths, guided by the will of the fabled King of Snakes—an elusive figure of whispered legend. Naga sentinels and lizardfolk warbands stalk intruders, guarding relics best left buried. To adventurers, the Serpent Hills offer peril, power, and a whisper of ancient secrets too potent to resist.

Sharp hills of ruddy earth rise like rusted teeth from dry, thorny scrubland, their peaks crowned with broken stone and half-swallowed ruins. Dust coils on the wind, and serpent tracks crisscross the cracked trails. Occasional fog seeps up from hidden fissures, hinting at the tunnels below. Faint chanting or hissing echoes in the still air, and glowing eyes sometimes blink from the shadows of cave mouths.