This is a minor volume not understood to strictly be part of Rastillions Diabolique, though it is believed to be referenced as a piece of or related to The Endless Gates of that collection. Its mentioned a few times in other works as far back as about CY 8500 as a minor volume of insights and meditative practices that “awaken” an inner eye.
Attributed Author: It is thought to be a collected work of multiple authors. The primary author is said to be one ‘Vidi Clavis’ (vee-dee clav-is), though nothing is known of this person in other records. Rumors state that it was passed on to his or her apprentice.
Initial Appearance: The original binding is unknown. Its current biding is in some sort of black leather. The pages are gilt edged in gold, and rough. The entire volume looks well-worn.
Item Origins/Purpose: The tome is said to be keyed to Psychic practitioners. It contains minor formulae that assist with meditation and insights.
SIGNIFICANT EXPERIENCE: Reference works and basic exposure alone may only provide the foundation for gaining a [mechanics based] advantage. To reflect the practice and experience to gain that benefit consistently, typically requires a cost in Character Points.
EXPRESSION: Ritual of Formulae Application
[Lesser] Ritual of the Key Master: Req: Psychic Aptitude 1 / Cost: 2 Character Points – Any check is modified by the practitioners Psychic Aptitude. This can be attempted for each treatment in the tome to apply it to.
[Greater] Ritual of the Key Master: Req: Psychic Aptitude 2 / Cost: 2 Character Points + 1 Essence – Any check is modified by the practitioners Psychic Aptitude. This can be attempted for each treatment in the tome to apply it to.
i20 [specific] Requirements:
Lesser Ritual = DC 12 Sanity; Greater Ritual = DC 16 Sanity
Cantrip (lesser): Dancing Lights (2 effects at once); Spells (greater): Charm Person (+1 DC), Levitation (self x3 vertical)
There is known to be a lesser ritual associated with the work, that enhance the meagre knowledge it imparts.
In reality, it is one of the three sundered sections of the malevolent Keys to the Outer Doors that cannot be truly interpreted until it is joined with the others.