Changes

Once you collect [[Kulle]]'s head a superunique [[Sand Monster]] called [[Ancient Guardian (monster)|Ancient Guardian]] will appear. He can be a fairly powerful guy and he seems to follow you forever so it's not so easy to retreat to recuperate. Once he's dead he'll drop part 6 of the [[Hunter's Journal]]. If you don't require the journal you can simply hop through the dungeon stone which is always nearby back to the [[Dahlgur Oasis]] before the guardian appears as his death isn't required to complete the quest.