Take a belt of pain to Dungeon Deceit, from recall go north to visit Quenya Stardust, she will say:
'Give me your totem of agony, and I shall dispose of it properly.' Quenya Stardust says to you. 'As it is, it is disturbing my concentration, my powers are siphoning its maleficence.' Quenya Stardust says to you. 'Let us destroy it, and we shall both be freed.'
Then give her your belt of pain to obtain the mark.
For helping a powerful seeress do her work, the Powers have granted thee a Mark. You have been granted The Mark of Clairsentience! You gain 54 practices!