The Drowned Spiral
The Drowned Spiral is a cursed underwater pathway that turns distance, direction, and memory against those who travel it. The route was once a ceremonial road leading to a Netherese observatory. After the city sank, the aboleth lairing beneath it threaded the road with Far Realm influence, transforming every bend into a question asked of the traveler's mind. The hazard is complex and active, imposing a repeating sequence of disorientation, psychic pressure, and sudden changes in the surrounding architecture.
The Drowned Spiral
Defenses
Detection
“A submerged avenue coils through the ruins in a slow spiral, its black stone walls leaning inward like the ribs of some enormous drowned creature. Netherese glyphs drift across the masonry as pale violet afterimages rather than fixed inscriptions. The water is unnaturally still, yet strands of silt continually crawl uphill toward the path's unseen center. Farther ahead, the darkness occasionally opens into a vast lidless eye that vanishes when directly observed.”
Standard Engagement
The hazard activates when a creature enters the dark pathway or when a creature crosses an unmarked junction. It also activates immediately if a character touches an intact anchor glyph or attempts to teleport within the pathway.
On initiative count 20, the pathway uses one effect, choosing a different effect each round if possible. Round 1, The Road That Remembers affects all creatures in the pathway. Round 2, False Current targets the creature farthest from the group. Round 3, The Borrowed Voice targets a creature that failed a saving throw during the previous round. The routine then repeats. If no creatures are within the pathway, the hazard becomes dormant.
The hazard resets at the start of the next initiative count 20 after it has been suppressed or after the party leaves the pathway. Defaced glyphs reform after 24 hours unless removed from the wall entirely.
Each creature in the pathway must make a DC 15 Wisdom saving throw. On a failure, it takes 10 (3d6) psychic damage and becomes disoriented until the end of its next turn. While disoriented, its speed is halved, it cannot take reactions, and it has disadvantage on Wisdom (Perception) checks. On a success, it takes half damage and suffers no other effect.
The water around one creature twists into a narrow current. The creature must succeed on a DC 15 Strength or Dexterity saving throw, chosen by the creature, or be moved up to 30 feet along a path chosen by the hazard. This movement can carry the creature around a corner, through a narrow opening, or toward a previously visited section. A creature moved into solid masonry takes 7 (2d6) bludgeoning damage and stops in the nearest open space.
A drowned Netherese voice speaks in the target's own voice, naming a secret, fear, or recent memory. The creature must succeed on a DC 15 Charisma saving throw or be frightened of the nearest visible creature until the end of its next turn. If no other creature is visible, it is frightened of the pathway itself.
The pathway is a series of connected spaces, each no more than 60 feet long. A creature that travels more than 60 feet without stopping, marking a wall, or succeeding on a DC 14 Wisdom (Survival) check becomes lost in the spiral and returns to the last junction it remembers. The creature does not realize this has happened until it sees a previously passed landmark.
A creature can communicate normally underwater only by telepathy, magic, or agreed-upon gestures. The hazard imitates spoken words as visual ripples and distorted memories, making verbal communication unreliable. Once per round, the DM may alter a nonmagical message by one simple detail, such as changing a direction, number, or name.
When a creature fails two or more saving throws against the hazard, it gains one Memory Scar. A creature with a Memory Scar has disadvantage on its next saving throw against the hazard. The scar ends after the creature finishes a long rest outside the aboleth's lair or receives remove curse.
The pathway is filled with dim violet light. A creature without darkvision can see normally within 20 feet but has disadvantage on Perception checks beyond that distance. Magical light flickers whenever the routine activates.
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