I think that just adds to the variety of ideas people would come up with... and why it would be a great challenge!

Eventually, they WERE able to figure out how to read the instructions... at least the billionaire friend was.

So maybe a map could be a monster map with a human translation. Or maybe, since monsters are (generally) built the same as we are, and populate the same worlds, they would tend to do many things in ways similar *enough* for all the skilled cartographers here to decipher. (They wouldn't want *all* humans to understand their maps, would they?)

I've thought of about 80 possible interpretations of this concept, while considering the perception of reality problem, in the last couple of minutes!

I hope it is a challenge (and soon) cause I'm seriously champing at the bit wanting to attempt it (and probably fail miserably, but yeah...)