I have looked into the greatness of the warp, gazed upon a book that contains dark and foul secrets that no mortal should see, and obtained the truth of our mission!
… and let not the worlds of light dwell away from darkness. Let them, instead,
be bathed in the flame of cloying shadows; be called by the beckoning tendrils of
Empyrean fire; be lured from the void by the hungry shades of Immaterium.
To call forth the wraiths of flame and shadow, blood and darkness, the disciples
must swear a compact; must act as one, their minds turned to one purpose.
Let them swear their service in blood, not their own, but of the innocent, the
righteous, and the unspoilt. From among them, from those sworn to this
service, the Cantor must himself be chosen; the black soul whose voice will rise
above his brethren in the words of power, supplication and sacrifice; he who will
call the powers of darkness forth to swallow the worlds of the unfaithful.
Beside the devout shall mass the ranks of the fearful and the desperate.
Souls numbering three and sixty, who might add their ragged voices to the
choir of damnation. Atop a great height shall the faithful be arrayed, that
their fell supplications might be heard beyond the boundaries of reality; carried
by winds of madness through the infinite oceans of the Immaterium. About
them shall be laid the circle of power, its construction utter madness and sheer
perfection. Let no errant sigil mar its form, allow no deviation. The hallowed
circle shall be drawn with the blood of the corpse-god’s own faithful, tarnished
silver mixed throughout.
As the star of Chaos has eight cardinals, so too shall the circle; each
marked with the fleshless skull of a traitor, sworn. Atop each skull shall
rest a candle, a taper of wax, the powdered bones of the valiant slain, and the
blood of martyrs. Their balefire shall illuminate the sacrifice and the light of the
Empyrean shall flay the souls of the sacrificed. Upon the ground shall there
lay the Souls of the Sacrificed. Four their shall be, to appease the Gods
in turn. The Lords of the Immaterium demand their toll and for each shall be
apportioned one soul. Charity to Khorne, who takes from all; Law to Tzeentch,
who twists the galaxy to his whims; Piety to Slaanesh, who reveres naught
but himself; Security to Nurgle, who brings low all in time.
Let these souls be bound in cords of flesh and steel that they shall know
helplessness before the Gods of Darkness. Let them be laid before the Cantor,
that his prayers might fall upon them and cause them to tremble. And when
the last prayer is uttered, let their throats be cut with a blade of gold, that their
blood might spill upon the runes of power and send the supplications of the Cantor
screaming to that place of Empyrean light and warpfire. This done, the daemons
shall surely know the Cantor for their own and shall draw him and his world into
their dominion; and with this sacrifice, let us again tread the sublime paths of
the Screaming Vortex...
(This is how that comes out as I understand it)
Our will need to act as one in this ritual, all people with psychic powers will need to chip in and one of us will need to take the reins. Shin is most qualified for that.
We'll need 63 people whose blood we will use to make the ritual circle and symbols.
A great tower will be needed, probably reaching kilometers into the sky.
A perfect eight pointed star must be made from the blood of the corpse-emperor's followers mixed with silver
The fleshless skulls of traitors must be prepared with candles, martyr's blood, and bones of the valiant slain crushed into a powder must be placed at each point in the star.
Four sacrifices must be laid in the ritual area, one who embodies Charity to be given to khrone. One who embodies Law to be given to Tzeentch. One who embodies Piety to be given to Slaanesh. One who embodies security to be given to Nurgle.
The four sacrifices must be bound with flesh and chains before the one who leads the ritual.
Once the prayers are done the Cantor slits their throat with a gold knife and unleashes the powers upon the world dragging it into the world ... if the ritual was prepared perfectly.
Note from the GM: "This ritual will ALSO only work on Saint Annard's Pennance, sometime within the next six months"