Shadows of New Jerusalem
Because the Other Realms are distorted mirrors of the real world, places in those realms correspond to real places. This means that almost all the magical gates and weak spots in New Jerusalem lead to cities in the Realms that resemble it in some way. These Invisible Cities have their own locations, landmarks and inhabitants, while still being part of a larger Realm.
The Invisible Cities are amalgamations that reflect multiple different locations, not just New Jerusalem. In theory, it’s possible to travel great distances quickly by moving from a real world location to a City and then out again at another location; in practice, this is dangerous, impractical and costly.
(A few magical passages lead to isolated parts of the Realms. Maybe these were once part of a greater City, but drifted away as the Realms changed.)
There are many Invisible Cities in the Realms, but there are four main ones that can be reached from New Jerusalem.
The city of demons and sin, currently in turmoil as their soul-based economy has tanked. The Church Infernal is moving to take over and impose control.
The city of goblins and elves. Quicksilver was largely built by human servants and is ruled by the Splendid, who chafe against their debt to Hell.
Necropolis (The Underworld)
The city of undead and ghosts. Necropolis has the same issues with entropy as New Jerusalem; its inhabitants seek to change the human city to fix their own.
- The Grove of Ghosts: A grove of dead trees where ghosts glide and yearn for attention
Wormwood (The Night Lands)
The city of nightmares and chimera. It reflects human fears, but modern fears are so varied, and change so fast, that Wormwood is unstable and falling apart.
- Castle Web: Home of the Priestess of Spiders
- The Whispering Caves: A secret lair where stones recite terrible truths