UPDATED MAP:
Rand pointing out that updating the party's map was on par with the Hobgoblins' promise on 'giving information' was a
Good Idea!, so no test was made. Thus, you've gained the same benefit as if Ghaaldar had updated your map for you with a successful Cartographer test.
Maps in Torchbearer are, like pretty much everything else, really interesting and really different than what most RPG players are used to. Maps are detailed instructions on how to expertly bypass the traps, hazards, and dangerous terrain that you've already found a good way past. Maps allow you to instantly and effortlessly bypass these things, they're a knowledge database on how to overcome challenges you've already beat.
You can go in between any of the areas in red text in a 'fast travel' mode, instantly going there if there are no immediate threats.
