Commoners are listed with proficiencies in 2 weapons, there is a curtain instead of door to Theldrick's room, Garras, Kendra, and Theldrick all wield heavy flails (2-handed weapons) while using shields; we are never told what the book on G&K's table is; grimlocks are not proficient with shields (I'll grant them morningstars); the grimlock barbarian's knives are described as "dull, rusty" and her armor is "battered," but it turns out they are masterwork daggers (complete with +1 to hit) and +1 studded leather armor (and how the heck did she preserve the drow head?); the grimlock chieftain's damage with the greataxe should be 1d12+9 when he is raging; the acolytes of Vecna cast message to warn the Faceless One, but they don't even have that spell in their grimoires, let alone memorized; twice grimlocks are said to use their longspears to hold off PCs, but they don't HAVE longspears.