Mouseferatu
Hero
It's taken me awhile to get my head around it, but I'm about positive it's total/overall level. That feels wrong, coming from the prior two editions, but that's just it: It's knowledge of the prior editions that even makes us question this. Unless I missed it (which is possible), it never says in the book that it's not overall level, and every other reference specifies if it's talking about class level rather than character. Therefore, taking the edition purely as its own thing...