At the firs time I took only those two potions (and some other stuff... but that doesn't matter <img src="/ubbthreads/images/graemlins/evilgrin1.gif" alt="" />).
I didn't see any djinn and I could just not see the letter - there is a LOT of books and scrolls.
ok, so what I have to do is just to look for a letter (what's with that djinn?), am I correct?