'Tombs' show as a 6x2 room on the 'Player Aid' but 'Tombs' are a dynamic room size. It's a little confusing because it should be similar to the 'Prestige Room' which is 'X x X'. The rules don't mention any minimums for the 'Tombs' so technically, a valid room size is 1x1. The game generally feels as though 2x2 would be min size for a room otherwise it is just a hallway.
I thought that 6 x 2 might be the minimum room size since you specified the value unlike the 'Prestige Room' on the 'Player Aid' sheet.
Special Information Revision?:
'Cost is 1 times the length of the room'
'Must have a height and length of at least 2'
Thanks for the post and the comments. Yes, Tombs should show "X x X" similar to the Prestige Room. And you are correct, the minimum room size for all rooms would be 2x2.
I'll have to go back to my notes and see if the Tombs were supposed to have a different minimum room size.
Also, thank you for the special information revision note as well. I appreciate your time and comment! Thank you for being a fan of games!
-James