Hi,
I haven't read very far into this forum nut I have seen a few thing that I can answer here.
The acorns I believe are directions to use with the compass.
The block letters I have already figured out, they are all the letters to spell out the the title of the book.
Write out the letters for each block and then write out Secrets of the alchemist dar, then eliminate each letter from there, I think I heard he did this in the first book.
I hope I haven't told you guy something you haven't already know if I have then I feel like a idiot for not reading further in the forum to see.
If you haven't figured this then I will take my bows nows and no autograph at this time, please......lol
:P