There is one bit of every version of Rolemaster so far that I absolutely detest. That is the use of cryptic lookup codes. These are the codes that appear on the herbs and poison list and the monster locations/habitats.
It is the monsters habitats I really cannot stand. I know this has come up in the past but I was statting out an adventure the other night and these codes had me flipping back and forth through Creatures and Treasures yet again.
This time is was the Black Stalker. This is the first line of their entry in C&T.