Skull Light Puzzle

Questions about the plot and ending [SPOILERS]

Libary

Crystal melting potion isn't working!

[SPOILER] Underwater Plaque 5?

Sort-of-stuck in cave

[Story] Theory: Quern might be bigger than just the islands we see in the game

Are the World-Lines parallel dimensions, or more like planets linked by stargates?

What Are The Powders In The Alchemy Lab

+ - wheel in the mine. For those that solved the game! (I try to not spoil anything though)

[SPOILERS] Uneasy thoughts about the concept

Capped Test Tube?

Mechanics - pegs puzzle not accepting solution despite it following all the rules in the hint card.

Mechanics 70, 248, 347

Need help