The demon in man's flesh capers slightly clapping a hand as the noise blaster's focused array of destruction vapourised what once had been a human.
Flicking his head back up the "psyker" cackled again as Vul spoke. "little mortal. Does the Master march to the Dog's bark. Does a Star take heed of the rocks that orbit it.
You were outwitted. You in your might, he in his cunning. No wonder he has found favour with the Changer of Ways. All muct change, all must evolve to improve. Think on this.
His eyes shifted slightly as a slight air of menace entered them... Now if we are to speak of Boons... We should speak of thoise that may allow you to continue your sluggish mortal lives. THe beacon below. It hurts us tainted and flawed by its devotion to my debauched cousin. It should burn with the pure blue fire of the Changer.
The psyker leans forward, hunching its shoulders ina birdlike manner, perched on one foot and leaning forward. "On the speck of dust beneath is a trader with a book. The book has the ritual. If you can do this "small boon" then I may think on a reward for you"
As he finishes speaking all of the acolytes can feel the images of a decrpit bazaar underneath a soot laden rusted glass dome. The small book trader - a crazed half naked man with cloven hooves protective of his small stall of "religious tomes" that is ignored by most.
Spoiler
Anyone can make an opposed (+20 WP ) test if they want to resist getting the image of the stall on the planet below.
Resist against (1d100)[94] TN89+45+40 = 174 (+2 DoS from Unnatural WP)