Complete solution with answer and video walkthrough
That Gem belongs to my boss
Tap on the wood and the blade on the ground. Then drag one of them to the other to combine them and make an ax. Now drag the ax to the tree.


(Gundolf Puzzle) Fix the image

Phew That was a crazy cave

That Gem is mine

(Gundolf Puzzle) Run away from the spells

So you finally got your precious gem

(Gundolf Puzzle) Put the herbs into the formula

Gundolf said that the next gem is inside a pyramid

Alyx doesn’t know where to go