Can't proceed

[baram2007]

Nok/Mermek/Drustana/Lissandra/Kaleph/Herne/Elder/Skadi/Hildred/Tuhala/Historian
(Since the names of NPCs were used through a translator, the spelling may be different.)

Black wasp/albino spider/queen spider/monster beetle/nose horn beetle

Are there any other NPCs and quest bosses other than these?

I solved two mysterious powders (seems to be hidden cosmetic decorations) and pyrite in the collapsed church, but I can't progress beyond that.

I searched for iron wood (I don't know the original text because it was translated into Korean. Could it be iron wood?) and reishi mushrooms, but I couldn't find them.

I want to cross the river to the north and go to the playground, but flying creatures appear and I can't proceed.

I don't know if this is because it's an area under development, or because I haven't solved the preceding quest.

[Drudackus]

Spoilers

Based upon your notes, I am unsure whether you have opened the Walnut Chest, near the Elder. If you haven't you need to kill the King Stag Beetle, found underground near the broken bridge leading to the cathedral, and use the loot to open the walnut chest.

Take the contents of the chest to the Elder and follow the instructions.

Good luck, have fun.

[baram2007]

I think the elder said something to me after seeing the half scroll, but I don't remember.

[Drudackus]

Originally posted by baram2007:

I think the elder said something to me after seeing the half scroll, but I don't remember.

Take the half scroll to the Historian and follow his instructions.

Have fun

[Besrodik]

Warning! Spoiler alert!

So, to solve the problem with the hawk who always kills when you cross some border line, you should use the caves. There is a small and quite unconspicious door (if you don't know where to look for it) under the broken bridge which is near the unrevealed (hidden) nothern part of the map (I guess, it's the bridge over the river you can't cross due to the hawk atacks). This door leads to the cave system and if you enter it, eventually, you will find the way out on the other side .
But I strongly recommend to put on your best armor and take your best weapon, also, take as many healing potions/bandages and other means as you can carry, because eventually, you will face a hostile tribe with quite powerful warriors . They'll be real pain in the a*se if you come unprepared.
And, as a bonus to my other tips, I can tell, that you'll be able to tame there one of the best mounts — a bird (a titmouse or a finch, I think) . But it's not an easy task. I won't reveal more details, as I have already told much more than I intended.
Good luck!

[baram2007]

I love both of you who responded. If I remember, I first took the half scroll out of the walnut nut and showed it to the elder, and when the elder told me to go to the historian, I went to the historian after 'keeping the scroll in a box in the nest so as not to lose it.'
When I got to the historian, I didn't have the half scroll in my inventory, so the quest didn't continue.

Thank you both for introducing great tips.