Good friend:

Roll's identity seems to be that of Unseelie. There
are several factors that indicate otherwise -- namely
his dress, Unseelie traditionally appear in the form
of monsters, and his manifestation of powers, which
seemed to be a manifestation of unlimited glamour rather
than restricted by his shape. Still, he seems to
have been working alone, as is the nature of Unseelie.

The talon itself I haven't been able to get much in
research, but I suspect any references to it will
be veiled in metaphor.

Regarding the two you were concerned about, Gruenwald seems
to have made a full recovery except he doesn't remember the
events of that night. I decided not to tell him your
suspicions, that seemed to be what you wanted. And Ferenc
died. Yes, he recovered from his wounds -- you saw to that --
but not mentally, it seems, because his body was found
at the bottom of a tall cliff. I'll send more details if
I can get them.

Finally, regarding your research on the mysterious letters
NOM -- the shipment turned out to have an artifact hidden
inside, although I was unable to get details about what
exactly it was. The authorities have it confiscated somewhere
now. But I should warn you -- and I know this from experience
rather than knowledge -- they're after you again, keep a sharp
eye out.