Titanic Portal Arch

Portal to Avernus, the First Layer of the Nine Hells.
Floating island 2500 feet in the air surrounded by cumulonimbus thunderstorm clouds.

• Regional Effects
  • Flashes of lightning and peals of thunder are continual, day and night, within 5 miles of the lair.
  • Strong wind blows within 1 mile of the lair, imposing disadvantage on ranged attack rolls and auditory perception checks, extinguishing nonmagical flames, and a flying creature must land at the end of its turn or fall 500 feet.
  • Heavy rain is constant within 1 mile of the lair, lightly obscuring vision which imposes disadvantage on sight perception checks. Rain causes rivers and streams to fill or overflow their banks.

RUINED STRUCTURE
>100,000 years ago

Type

World wonder

Parent Location

Field of Titanic Ruins