The party collect the dagger after a ritual and the next morning come across a trinket vendor called Rascar Capac who claims to have a piece of the moon and offers it in exchange of protection.
The party head back to The White Wastes to see the Crone not before being attached by some cultists.
Speaking to the Crone, she advises the party that the stone is bound by very powerful fey magic and is therefore currently useless to the crone.
That evening the party organise passage on a caravan going to Syl El Amn.