Allows a character to create a Sigil Stone. This requires a rare Daedric morpholith: a variety of soul gem found only in Oblivion. This ritual is guarded knowledge known only to the most experienced masters of Conjuration and Mysticism. The character must first prepare a chamber sealed against all daylight and disturbances, roofed and walled with white stone, and floored with black tiles. All surfaces within the chamber must be ritually purified with a solution of void salts (an expensive alchemical ingredient [mysticism]).
A foursquare table must be placed in the center of a room with a dish to receive the morpholith. Four censers shall be prepared with incense compounded from gorvix (an expensive alchemical ingredient [mysticism]) and harrada (an expensive alchemical ingredient [conjuration]).
On the equinox, the character must place the morpholith in the dish and intone the rites specified in the Book of Law, beginning at dawn and continuing without end until sunset of the same day. They must also choose a Daedric Prince whom they are attempting to contact and make a Mysticism skill test with a -20 penalty to see if they successfully performed the rites.
The character may then present the purified morpholith to the Daedric Prince for their inscription, assuming the Prince deems them worthy. Once inscribed, the morpholith is transformed into a Sigil Stone. Such an inscription represents a contract between the character and the Prince in question, which may be invoked through further use of the Sigil Stone.
If the character fails the Mysticism test, the ritual backfires. Roll 2d4 + 3 on the mysticism backfire effect table.
Using the Stone
In the future, if the character communicates directly with the Daedric Prince who inscribed the Sigil Stone, they may invoke the compact (known as the conjurational charter) between the two of them. The character then activates the charged Sigil Stone (with a Mysticism skill test). This transports the stone through the liminal barrier, opening a portal between Mundus and the Prince’s realm of Oblivion. The portal may only remain open for a short period of time (a minute at most), and it is the Daedric Prince who gets to decide where the portal leads within their realm.
If the character fails the Mysticism test, the ritual backfires. Roll 2d4 + 3 on the mysticism backfire effect table.