Is there another area other than the one to the right of the second screen? Thats the only sheer wall i'd been able to find, and I feel totally blind haha. Also, thank you for the reply! I absolutely *adored* Grove, and I have been super duper loving Prowler! It's genuinely got some pretty addicting gameplay with it's gathering and crafting mechanics. Not to mention the gorgeous art!
Yes... and then you should have done a quest in there, a boss fight, rescued the Trapper Matriach and returned to her. And she should have given you a new quest, which is to raise your renown with the Trappers...
You'll be able to proceed with 'The Fortress' quest in time. For now keep continuing on with the Swamplands quests and it will wrap back around.