Currents of magic run through the world—invisible, artery-like networks that exert subtle influence and connect disparate lands. The greatest of these magical streams are persistent paths, often known by colloquial names or simply as unearthly roads. An unearthly road acts like a sort of planar portal that stretches from one place to another, be they sites on the same world or on different planes of existence. Unearthly roads allow creatures to cross great distances rapidly, moving from an entrance gate to an exit gate or visa versa. These paths operate like long tunnels, and a creature that travels on an unearthly road progresses 21 miles of distance in the time it would normally take it to travel 1 mile. While on the road, glimpses of the world beyond might be visible in blurred or distorted visions of scenery or especially prominent landmarks. Creatures or specific details are not visible beyond an unearthly road.
Some unearthly roads serve as trade routes or secret connections between distant lands. Others shift locations at noteworthy times or in response to external phenomena, like on specific anniversaries or in response to the phases of the moon. Some might also require a particular item, ritual, or action to open their gates. The Unearthly Road Keys table offers suggestions on how to enter an unearthly road.
| Unearthly Road Keys | |
| d6 | Key |
| 1 | Throwing a silver orb through an ancient arch |
| 2 | Spilling a pint of humanoid blood |
| 3 | Calling the name of a specific archfey three times |
| 4 | Wearing the regalia of a lost royal dynasty |
| 5 | Permanently sacrificing a memory of joy |
| 6 | Being the descendant of a legendary hero |