| adom |
as far as letting your PCs know not to reveal their spellcasting identity...
I was so impressed by the adventure background, that I had to foreshadow it in adventures previously. My PCs are only 5th level, but they've heard about Blackmaw in rumours and "shop talk" - the stuff mined/produced there is traded nearby.
7th Level will see them dealing with an escapee in a nearby town, thanks to a spellcaster having been able to use Magic Jar and smuggle himself out. In the aftermath of that they'll hear about improved spell-caster security measures.
If they can't get those hints, then they deserve to have their characters killed and cremated in the prison forge.
I hope this also illustrates that even though it won't be specifically relevant for a long time, a cool adventure like this one can be a real inspiration to a browsing DM.