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Dark fantasy illustration of a cavern with glowing orange lava flowing through cracked black rock, smoke rising, and sharp stalactites overhead.

Dark fantasy illustration of a cavern with glowing orange lava flowing through cracked black rock, smoke rising, and sharp stalactites overhead.

Cavern Layout The chamber is roughly 120 feet across. The key features are: Lava Fissures- cracks in the ground 5-10 feet wide, filled with molten rock, radiate intense heat. Standing within 5 feet causes 1d6 fire damage at the start of a turn. Entering or starting a turn in a fissure causes 4d10 fire damage. Toxic Gas Vents- Sulfurous steam vents from the floor. Creatures entering or starting their turn in one must make a Constitution Save DC 14 or be poisoned for 1 round and coughing reveals your positioning. Unstable Ceiling Large stalactites hang overhead. If struck with enough force (AC 14 HP 10 Damage Threshold of 5) or a heavy tremor will force them to fall. A creature under one when it falls must make a Dexterity Save DC 14 or take 3d6 bludgeoning damage on a fail half on a save. Ver más