I was thinking about how to do this.
Two things came to mind.
One, to build something relatively small, that can fit on a normal and on a Zone Mortalis board as well. A small shrine with a little building for the Cawdor gangers guarding it. But I may even finish this well before the deadline so
option two, something much bigger, with the footprint of a Zone Mortalis tile. An old ruin converted to the purpose of a temple with sacred relics inside. Maybe even a stained glass window.
Then I thought why not both

These could all fit to the max three base rule, if that is still in place.
Sounds just right; I'll be watching with interest on behalf of my own Cawdors...
Best of luck! 
I'm more of an Escher fan, but a chem-lab didn't seem fitting for the theme

I hope my humble offering will not draw ire of House Cawdor
