Apologies, I haven't read the whole thread. This is looking good Xcali. Re power levels of creatures and such, don't worry about it, let the GM's who run the adventure sort that out. I would just provide descriptions and a difficulty grade, like easy, moderate, hard or very hard. Whilst games like D&D and its derivatives are very popular there are other systems that have strong followings that don't use levels, particularly D100 games like Runequest and it's many flavours for example. If your intent is to aim the map pack specifically at the D&D market, i.e. sell it on the DM's Guild rather then the generic Drivethru RPG site, then I would strongly suggest you do some homework and properly write up the monsters. This will entail making sections of your dungeon 'level' specific. If the PC's wander into an area to high above their current level as Adfor says, they can runaway and come back when they're ready or they can stay, fight and most likely die a horribly painful death