Forgotten Realms Codexery

Abeir

The lost sibling world of Faerûn, collided and sundered by divine magic.

Abeir stands as the ancient sister world to Toril, sharing a common origin before the gods sundered them into separate spheres during the Age of Creation. For millennia, it existed parallel to Faerûn, largely unknown to its inhabitants until cosmic magic tore the veil between realities. During the catastrophic Spellplague, the two worlds physically collided and merged, reshaping geography across both realms before being separated once more by divine intervention.

Type
World/Planet
Relation
Sister to Toril
Key Event
Spellplague Collision
Current Status
Separated (5th Edition)
Origin
Abeir-Toril Sphere

Lore & Background

Originally a single planet known as Abeir-Toril, the sphere was split into two distinct worlds orbiting the same space but separated by magical barriers. This separation remained stable until the Spellplague of 1385 DR, when chaotic magic caused the spheres to overlap and merge physically for several years. During this convergence, geography shifted violently across both realms, with lands from Abeir bleeding onto Toril and vice versa. The Second Sundering eventually restored their separation, leaving scars on history but ensuring they remain distinct planes once more. Scholars debate whether the gods intended this collision or if it was a side effect of Mystra's death. Regardless, the event fundamentally altered the magical landscape of the Forgotten Realms.

In Their Own Story

Elara stood upon the high cliffs of a ruined tower, watching the sky bruise purple and green. She knew the stories whispered in Candlekeep about the other world bleeding through. Tonight, she saw mountains that did not belong rising from the sea, jagged peaks of stone that smelled of sulfur and ancient salt. A shadow passed over her face, not cast by a cloud, but by a continent drifting across the sun from a realm beyond reach. She whispered a prayer to Mystra, hoping the veil would hold, for she felt the ground trembling beneath her boots as two worlds fought for dominance in the space between them.

Reader's Guide

Abeir is a planet of vast, untamed wilderness and continents largely unknown to Faerûnian scholars. Its geography mirrors Toril in some ways but features distinct landmasses shaped by different magical currents. The climate varies wildly, often harsher than its sister world, with storms that carry the residue of the Spellplague's chaotic magic. Culture on Abeir developed independently for eons before the collision events. Inhabitants include humans, elves, and other standard races, though their societies differ radically from those in Faerûn due to isolation. Gods who once walked Toril also have strong ties here, having migrated during the initial sundering. Travelers who stumbled there often found themselves trapped by shifting planes. Its role in major history is pivotal; without Abeir's collision with Toril during the late 14th century DR, many nations would not exist as they do today. The merging caused catastrophic changes to coastlines and political borders across both spheres, marking it as a catalyst for modern Forgotten Realms events.

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