Forgotten Route Trap
When a creature steps within 10 feet of this trap’s magical sensor psychic energies reach out to play tricks upon its mind.
Delicate Sensor. Creatures that succeed on a Stealth check to move carefully do not activate the trap.
Spell Solve. Dispel magic (or any other effect that negates magic) and a spellcasting ability check deactivates the trap’s magic sensor for 1 hour. A critical on the spellcasting ability check results in a critical success.
Trap. This trap can be detected by an Investigation check made with disadvantage to notice the magical sensor near the ceiling. If the trap is not detected, it automatically triggers a critical failure.
The party can make a group Survival check to follow and retrace their own tracks to navigate through the trapped area. This trap might also be overcome through the use of mundane items such as chalk, coins, or rope to keep their way.
Critical Failure: Each creature within 50 feet must make a Wisdom saving throw with disadvantage or it forgets the path it has traveled for the last 3 hours or previous night (whichever is sooner), as per the modify memory spell.
Failure: As a critical failure, but the saving throw is not made with disadvantage .
Success: The adventurers avoid or disarm the trap.
Critical Success: The adventurers avoid or disarm the trap but have the option to leave the trap active for someone else to deal with.