without to much spoiling
im not sure how to help
ill just say this, i never figured out how to untie the knight,
and completed the game,
btw there are no OPTIONAL anythings in this game so far that I can find..
you have some items in the inv, you already did the tree? it sounds like (in beta it was buggy)
so if you did the tree the game is really almost over..
fyi
it would be neat to know if the knight can be untied but im thinking,. noper.
let the ignorant fool suffer hehe