OH WOW. This Minerva and Snape were so wonderful. Snape actually made me laugh out loud, which I think is very canon for him.
I liked the word choices in a lot of this. You painted good pictures.
I really like how well Minerva and Severus fit in this, and how perfectly skewed Snape's idea of normal behavior is from other's (spelling one of the black pieces as Pomona). I really like the idea of Snape not having trusted Pomona who honestly seems very genuine to me as a character and a Hufflepuff. And I like how Minerva was similarly short on patience for certain things, little things like that.