Semblance of the Key and the Gate

8th-level conjuration

Casting Time: 8 hours

Range: 30 feet

Components: V, S, M (a sculpture or other work of art inspired by Yog-Sothoth; see text)

Duration: Concentration, up to 1 minute

You evoke the unfathomable omnipresence of Yog-Sothoth to conjure a portal linking an unoccupied space you can see within range to a precise location on any plane of existence (including the plane you are currently on). The portal has a circular opening, which you can make 5 to 20 feet in diameter. You can orient the portal in any direction you choose. The portal lasts for the duration.

The portal has a front and a back in each location where it appears. Travel through the portal is only possible by moving through its front. Anything that does so instantly arrives in the unoccupied space nearest the front of its other location.

Deities, Great Old Ones, and other planar rulers can prevent portals like this from opening in their presence or anywhere within their domains.

When you cast this spell, you can speak the name of a specific creature (not a pseudonym, title, or nickname). If you do, the portal opens in that creature’s immediate vicinity and draws it through to the nearest unoccupied space on your side of the portal unless it succeeds on a Charisma saving throw. The spell automatically fails if you name a creature with challenge rating 10 or higher unless you provide as a material component a rare or rarer magic item the creature desires, which the spell consumes. You gain no special power over the creature. When the duration ends, the creature returns to where it came from unless it wishes to stay and succeeds on a new Charisma saving throw.

At Higher Levels. When you cast this spell using a spell slot of 9th level, a named creature of challenge rating 10 or lower receives no saving throw.

Section 15: Copyright Notice

Sandy Petersen’s Cthulhu Mythos, © 2018, Petersen Games; Authors: Sandy Petersen, David N. Ross, James Jacobs, Arthur Petersen, Ian Starcher.

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