So, I read the old book, the diary and the ex-mortis. I found the 4 blood symbols (On the head, near the arm, in the safe and in the attic) and I "talked" with Gwen. Yet I can't open the cellar. WHAT DO YOU WANT FROM ME?! (I'll change the score as soon as I understand what's wrong with the game. For the moment the game is officially broken, since I can't proceed after doing everything right)