I have started another playthrough and this time I made up a cheesy way of doing the Higba quest (that is, escorting him out to safety).
Warning: SPOILERS BELOW...
Ignore Higba for now and go west to Reaper bluffs (or whatever is called). This is the spot where a fisherman is looking for a missing source ring. I positioned three of my party members in the platform north (which can be accessed east via a ladder) and the remaining party member went to pick up the ring. The first thing I did was teleport the big voidwoken east, where magister Varland is, then... all hell broke loose. If magisters are feeling too strong, you can teleport some of the voidwoken frogs there too, but be careful because the voidwoken may end up killing a lot of people inside Driftwood fishworks. After that, just escort Higba east to where the fisherman is and mission accomplished.
Last edited by eLPuSHeR; 20/02/18 07:32 AM. Reason: Typo