Defeated the Spiderclan Queen Mother
is a collection, that takes place within the Witches of Dathomir Theme Park
You can start and complete this collection by completing the The Hunting Party
quest, which is part of the Spiderclan Queen Mother storyline which is started by Spell Weaver Leandra
for the Nightsisters
or by Arch Witch Azzenaj for the Singing Mountain Clan
You will most likely need a group to complete this quest, as it is group content.
XP and the Spiderclan Regicide badge