you have to do all of the tasks, and talk to every one to mke lyra fill better, and answer
Coram question.

1.Make sure that you've finished all tests by talking to
everyone.
2.Look everywhere to find as many Symbols that you can.
3.Click F1 and then the question mark in the book to go and
solve a question when it are asked and even if you have only
two Symbols you can still click it and get it solved.

I was stuck too...but when I understood that I had to
complete talking to everyone until nothing more to say
and then after the given question click F1 and find the
answer even though I only had 2 Symbols everything moved
along....It was quite a drag though when I felt stuck.

-lol- and now I'm stuck again at a place where I have to
stand under some hollow rock to solve something and I've
tried like various things and have all 3 symbols for a
question and yet when clicking F1 and trying to solve it
it just do not work....So I'm like an ? mark at the moment
So was looking for a full Walkthrough but not find one yet
for the PC version of this game so I am on an break from
the game at the moment waiting for a Walkthrough but if none
appear I'll just have to try and try again until I'll solve
it -lol- ****s* to be stuck but always good when one can
solve it....but got a bit pissed so took a break from it.

Hope you soon get free from being stuck.

Vampiro*