@Soul Vinci: First, you have to find all the corpses inside the caves. When you finish that there would be 4 or five ghosts in the puzzle chamber. Look beneath them and compare the symbols with the door. Not with weird ones, but the ones near them. Circle, square, triangle etc. That's the logic of it.

@Soul Vinci
The word it spells out is "Gnaiih", symbol 1 = G, symbol 2 = N, symbol 3 = A, symbol 4 and 5 (Z) = I, and symbol 6 = H

Sorry, but where is logic in first puzzle? I understand that 1=G and 6=m (from a letter), 5=Z from ghost. I can understand about 3 symbol (3 stars of David with this symbol > than 2 with Z or 1 with Э). But... why 2=Э and 4=Z? >_<

He said Corvus many times :P