Gog, he’s also got the way the Earth orbit’s the sun a bit off in one of the books. It was Fallen Stars, page 78 where he’s closing the first Hell Gate. He describes it opening widdershins against the natural clockwise movement of the sun. It really depends on your observation point (above or below the sun) as to which way everything moves. From above (North) almost everything moves or rotates widdershins or counterclockwise. What doesn’t is orbiting or rotating in retrograde.
I seem to recall in Demon Divine, they did build a chapel into one of the Demidova holdings. I can’t remember which, but I think it was the tower. Could be wrong.
The kitten was adopted by Caeco, so we may find out it’s status in the next book.