There's always been a fundamental difference between the magic of the Eastern portion of Witch World - in Estcarp/Escore - and the Western portion - High Hallack/Arvon.
In Escore, there's an ongoing battle between ancient forces of Good and Evil. In High Hallack, evil is something brought by people, and occasionally strengthened by the use of ancient - but essentially stationary - powers. In Arvon, we get the impression that Evil was long ago banished (though it may be stirring again).
So it's something of a surprise to find that this episode's Deus ex machina is named "Neevor", and appears to be the same one who appears to Aisling some years later (in both Witch World chronology and publication date) in Ciara's Song
. Are we perhaps trying to tie together both sets of magic?