Another thing you missed by not getting the symbols is the 3rd Raanaar language translation book. With that, you can read their notes and books perfectly in Act 4....
I really did not need the Raanaar book, just the first one. I have always been a fan of puzzles with transposed letters, and after getting the first book I could read the Raanaar text without any further assistance. That kind of suprised me too.
btw: I have finished the game both ways - restoring the doll, and keeping the doll. There is no problem either way.
