Well of Many Worlds · World Build Compendium

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Image promptsquare of jet-black silk-soft cloth, partly unfolded on dark stone, center opening onto a churning star-strewn circular portal, rippling six-foot doorway to elsewhere, signature shifting prismatic-and-void legendary scene-lighting radiance, cold cosmic colors spilling out, age-frayed edges, impossibly deep aperture, hero shot, self-illuminating portal, dark neutral backdrop, dark fantasy, grimdark, painterly digital art, dramatic chiaroscuro lighting, muted desaturated palette with corrupted-crimson accents, weathered post-Cataclysm atmosphere, intricate high detail, cinematic composition

Wondrous Item, Legendary

This fine black cloth, soft as silk, is folded up to the dimensions of a handkerchief. It unfolds into a circular sheet 6 feet in diameter.

You can take a Magic action to unfold the Well of Many Worlds and place it on a solid surface, whereupon it forms a two-way, 6-foot-diameter, circular portal to another world or plane of existence. Each time the item opens a portal, the GM decides where it leads. The portal remains open until a creature within 5 feet of it takes a Magic action to close it by taking hold of the edges of the cloth and folding it up.

Once the Well of Many Worlds has opened a portal, it can't do so again for 1d8 hours.