Deathway

The deathways were a network of portals linking crypts, catacombs, graveyards and other such places related to the Eminence of Araunt, across the continents of Laerakond and Faerûn, and between the worlds of Abeir and Toril.

Description
The deathways were a place located in between the Shadowfell and the Prime Material Plane, and connected to tombs, crypts, catacombs, graveyards and such other places across the multiverse, in arches or doors that were marked above them with the sign of the Eminence, three vertical slashes. Although those places were normal tombs or crypts for the unwary people, for those intelligent undead who knew the significance of the sign, or for the few living agents who worked for the Eminence, those places became portals that linked to everyone of the "principalities" of the Eminence across Abeir, and later Toril.

History
The origins of the deathways were unknown. According to the the demon Sarshethrian, who was trapped in the deathways ever since his birth, and was possibly created by them, the place had just existed since always.

It was Lod, the founder of the Eminence, the one who discovered how to connect the deathways with the Prime Material Plane, about five hundred years before 1479 DR, while he was in the world of Abeir. Lod recorded the way of creating entries to the deathways in his Codex of Araunt.

Initially, the deathways linked only places within the world of Abeir and the continent of Laerakond, but in the decade of the 1470s DR, the deathways began to spread across Faerûn, as far as Thay. Since then, the deathways began to spread across all over the world at an astounding rate.